DVD video made with DVDStyler doesn't play ok with background audio

Asked by marco.pallotta

I made DVD Video with DVDStyler.
The problem is that with background audio (ac3 file) DVD doesn't play well: that is menu is displayed but it seems that you cannot interact with buttons on the menu itself.
If i remove audio background all works ok.

Any ideas?
I tried with ac3 files (audio or stero) and mp2 files. Obviously in DVD option I correctly selected audio format.

Following log of authoring process:

Question information

Language:
English Edit question
Status:
Open
For:
Ubuntu dvdstyler Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
marco.pallotta (marco-pallotta) said :
#1

I forgot to say that DVDStyler version is 2.1 on Ubuntu 12.04.
Following I attach log of authoring process:

DVDStyler v2.1
Linux 3.2.0-29-generic x86_64
FFmpeg: libavformat 53.20.0, libavcodec 53.34.0, libavutil 51.21.0
Prepara
Cancellazione directory temporanea
Cerca i file codificati nella cache
Generazione menu
Generazione menu 1 di 2
Crea un menu MPEG
Durata audio: 271.000000 sec
Multiplazione audio e video in corso
Transcodifica file video:/tmp/dvd-tmp/menu1-0.mpg_bg.m2v
Need encode: true, use mplex: false
max_analyze_duration reached
Estimating duration from bitrate, this may be inaccurate
Input #0, mpegvideo, from '/tmp/dvd-tmp/menu1-0.mpg_bg.m2v':
  Duration: 00:00:14.92, bitrate: 9000 kb/s
    Stream #0.0: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 9000 kb/s, 25 fps, 25 tbr, 1200k tbn, 50 tbc
max_analyze_duration reached
Estimating duration from bitrate, this may be inaccurate
Input #1, ac3, from '/home/marco/Scrivania/video x DVD/03 - Passaggi.ac3':
  Duration: 00:04:31.91, start: 0.000000, bitrate: 191 kb/s
    Stream #1.0: Audio: ac3, 44100 Hz, mono, s16, 192 kb/s
Incompatible sample format 's16' for codec 'ac3', auto-selecting format 'flt'
Output #0, dvd, to '/tmp/dvd-tmp/menu1-0.mpg_bg.mpg':
  Metadata:
    encoder : Lavf53.21.0
    Stream #0.0: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45 DAR 16:9], q=2-31, 9000 kb/s, 90k tbn, 25 tbc
    Stream #0.1: Audio: ac3, 48000 Hz, mono, flt, 224 kb/s
Stream mapping:
  Stream #0.0 -> #0.0 (copy)
  Stream #1.0 -> #0.1
Input stream #1.0 frame changed from rate:44100 fmt:s16 ch:1 to rate:44100 fmt:flt ch:1
Warning, using s16 intermediate sample format for resampling
frame= 1102 fps= 0 q=-1.0 size= 3900kB time=00:00:44.08 bitrate= 724.8kbits/s
frame= 2530 fps=2529 q=-1.0 size= 8982kB time=00:01:41.20 bitrate= 727.1kbits/s
frame= 3954 fps=2635 q=-1.0 size= 14066kB time=00:02:38.16 bitrate= 728.6kbits/s
frame= 5387 fps=2693 q=-1.0 size= 19156kB time=00:03:35.48 bitrate= 728.3kbits/s
frame= 6776 fps=2717 q=-1.0 Lsize= 24156kB time=00:04:31.04 bitrate= 730.1kbits/s
video:16400kB audio:7436kB global headers:0kB muxing overhead 1.342171%
Multiplazione sottoimmagini in mpeg
Menu has 1 group(s) of changeable colours.
Esecuzione comando:spumux -P -s 0 "/tmp/dvd-tmp/menu1-0.mpg_spumux.xml"
DVDAuthor::spumux, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <email address hidden>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_buttons.png had 1 colors
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_highlight.png had 4 colors
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_select.png had 4 colors
INFO: Pickbuttongroups, success with 1 groups, useimg=1
INFO: 0 bytes of data written
INFO: 4947968 bytes of data written
INFO: 9895936 bytes of data written
INFO: 14841856 bytes of data written
INFO: 19789824 bytes of data written
INFO: 0 subtitles added, 0 subtitles skipped, stream: 32, offset: -0.00
Menu has 1 group(s) of changeable colours.
Esecuzione comando:spumux -P -s 1 "/tmp/dvd-tmp/menu1-0.mpg_spumux.xml"
DVDAuthor::spumux, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <email address hidden>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_buttons.png had 1 colors
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_highlight.png had 4 colors
INFO: Picture /tmp/dvd-tmp/menu1-0.mpg_select.png had 4 colors
INFO: Pickbuttongroups, success with 1 groups, useimg=1
INFO: 0 bytes of data written
INFO: 4947968 bytes of data written
INFO: 9895936 bytes of data written
INFO: 14841856 bytes of data written
INFO: 19789824 bytes of data written
INFO: 0 subtitles added, 0 subtitles skipped, stream: 33, offset: -0.00
Generazione menu 2 di 2
Crea un menu MPEG
Multiplazione sottoimmagini in mpeg
Menu has 2 group(s) of changeable colours.
Esecuzione comando:spumux -P -s 0 "/tmp/dvd-tmp/menu1-1.mpg_spumux.xml"
DVDAuthor::spumux, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <email address hidden>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_buttons.png had 1 colors
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_highlight.png had 4 colors
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_select.png had 7 colors
INFO: Pickbuttongroups, success with 2 groups, useimg=1
INFO: 0 bytes of data written
INFO: 14336 bytes of data written
INFO: 26624 bytes of data written
INFO: Found EOF in .sub file.
INFO: Max_sub_size=1562
WARN: Button y coordinates are odd for button button07: 56x481-150x509; they may not display properly.
INFO: 38912 bytes of data written
INFO: 51200 bytes of data written
INFO: 63488 bytes of data written
INFO: 1 subtitles added, 0 subtitles skipped, stream: 32, offset: 1.00
Menu has 2 group(s) of changeable colours.
Esecuzione comando:spumux -P -s 1 "/tmp/dvd-tmp/menu1-1.mpg_spumux.xml"
DVDAuthor::spumux, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <email address hidden>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_buttons.png had 1 colors
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_highlight.png had 4 colors
INFO: Picture /tmp/dvd-tmp/menu1-1.mpg_select.png had 7 colors
INFO: Pickbuttongroups, success with 2 groups, useimg=1
INFO: 0 bytes of data written
INFO: 14336 bytes of data written
INFO: 28672 bytes of data written
INFO: Found EOF in .sub file.
INFO: Max_sub_size=1186
WARN: Button y coordinates are odd for button button01: 104x149-246x261; they may not display properly.
WARN: Button y coordinates are odd for button button07: 56x433-150x455; they may not display properly.
INFO: found existing substream ID 0x20 (DVD-Video 0)
INFO: 40960 bytes of data written
INFO: 55296 bytes of data written
INFO: 67584 bytes of data written
INFO: 1 subtitles added, 0 subtitles skipped, stream: 33, offset: 1.00
Transcodifica/Rimultiplazione
Add file to cache:/tmp/dvd-cache/entry001.vob
Transcodifica file video:/home/marco/Scrivania/video x DVD/Video0012.mp4
Need encode: true, use mplex: false
multiple edit list entries, a/v desync might occur, patch welcome
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/marco/Scrivania/video x DVD/Video0012.mp4':
  Metadata:
    major_brand : isom
    minor_version : 512
    compatible_brands: skm23gp5
    creation_time : 1969-12-30 23:37:30
  Duration: 00:02:08.88, start: 0.000000, bitrate: 395 kb/s
    Stream #0.0(und): Audio: amrnb, 8000 Hz, 1 channels, flt, 12 kb/s
    Metadata:
      creation_time : 1969-12-30 23:37:30
    Stream #0.1(und): Video: mpeg4 (Simple Profile), yuv420p, 320x240 [PAR 1:1 DAR 4:3], 380 kb/s, 14.28 fps, 15 tbr, 1k tbn, 15 tbc
    Metadata:
      creation_time : 1969-12-30 23:37:30
w:320 h:240 pixfmt:yuv420p
w:320 h:240 fmt:yuv420p -> w:720 h:576 fmt:yuv420p flags:0x4
Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!
channel_layout not specified
No channel layout specified. The encoder will guess the layout, but it might be incorrect.
Output #0, dvd, to '/tmp/dvd-cache/entry001.vob':
  Metadata:
    encoder : Lavf53.21.0
    Stream #0.0: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], q=2-31, 2000 kb/s, 90k tbn, 25 tbc
    Stream #0.1: Audio: ac3, 48000 Hz, mono, flt, 224 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
frame= 0 fps= 0 q=0.0 size= 0kB time=00:00:00.00 bitrate= 0.0kbits/s
Warning, using s16 intermediate sample format for resampling
Multiple frames in a packet from stream 0
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=881 size=896
buffer underflow i=1 bufi=654 size=896
buffer underflow i=1 bufi=654 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
frame= 35 fps= 0 q=4.1 size= 478kB time=00:00:01.36 bitrate=2879.2kbits/s dup=16 drop=0
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=877 size=896
buffer underflow i=1 bufi=204 size=896
frame= 77 fps= 77 q=4.8 size= 942kB time=00:00:03.00 bitrate=2565.4kbits/s dup=34 drop=0
frame= 130 fps= 86 q=4.9 size= 1516kB time=00:00:05.08 bitrate=2440.9kbits/s dup=57 drop=0
frame= 178 fps= 88 q=4.1 size= 2072kB time=00:00:07.08 bitrate=2397.4kbits/s dup=77 drop=0
frame= 233 fps= 92 q=5.3 size= 2688kB time=00:00:09.24 bitrate=2381.1kbits/s dup=102 drop=0
frame= 289 fps= 95 q=3.3 size= 3300kB time=00:00:11.48 bitrate=2353.2kbits/s dup=126 drop=0
frame= 339 fps= 96 q=4.2 size= 3872kB time=00:00:13.50 bitrate=2348.9kbits/s dup=147 drop=0
frame= 408 fps=101 q=3.5 size= 4616kB time=00:00:16.22 bitrate=2330.8kbits/s dup=177 drop=0
frame= 481 fps=106 q=3.6 size= 5486kB time=00:00:19.20 bitrate=2340.7kbits/s dup=208 drop=0
frame= 553 fps=110 q=4.3 size= 6258kB time=00:00:22.04 bitrate=2325.2kbits/s dup=239 drop=0
frame= 632 fps=114 q=6.1 size= 7156kB time=00:00:25.18 bitrate=2327.7kbits/s dup=273 drop=0
frame= 712 fps=118 q=4.8 size= 8062kB time=00:00:28.38 bitrate=2326.8kbits/s dup=307 drop=0
frame= 794 fps=121 q=6.5 size= 8986kB time=00:00:31.64 bitrate=2326.0kbits/s dup=342 drop=0
frame= 848 fps=120 q=5.4 size= 9582kB time=00:00:33.82 bitrate=2320.7kbits/s dup=365 drop=0
frame= 918 fps=121 q=6.1 size= 10382kB time=00:00:36.60 bitrate=2323.2kbits/s dup=395 drop=0
frame= 987 fps=122 q=6.8 size= 11182kB time=00:00:39.42 bitrate=2323.5kbits/s dup=425 drop=0
frame= 1060 fps=123 q=7.3 size= 11990kB time=00:00:42.30 bitrate=2321.8kbits/s dup=456 drop=0
frame= 1139 fps=125 q=4.8 size= 12870kB time=00:00:45.50 bitrate=2317.0kbits/s dup=490 drop=0
frame= 1221 fps=127 q=6.0 size= 13800kB time=00:00:48.76 bitrate=2318.1kbits/s dup=525 drop=0
frame= 1298 fps=128 q=5.2 size= 14638kB time=00:00:51.80 bitrate=2314.6kbits/s dup=558 drop=0
frame= 1380 fps=130 q=4.5 size= 15562kB time=00:00:55.10 bitrate=2313.5kbits/s dup=593 drop=0
frame= 1457 fps=131 q=5.4 size= 16462kB time=00:00:58.24 bitrate=2315.5kbits/s dup=626 drop=0
frame= 1536 fps=132 q=5.3 size= 17318kB time=00:01:01.34 bitrate=2312.7kbits/s dup=660 drop=0
frame= 1615 fps=133 q=3.9 size= 18224kB time=00:01:04.54 bitrate=2313.0kbits/s dup=694 drop=0
frame= 1693 fps=134 q=4.3 size= 19084kB time=00:01:07.64 bitrate=2311.0kbits/s dup=727 drop=0
frame= 1777 fps=135 q=5.1 size= 20038kB time=00:01:11.00 bitrate=2311.7kbits/s dup=763 drop=0
frame= 1859 fps=136 q=3.3 size= 20940kB time=00:01:14.30 bitrate=2308.6kbits/s dup=798 drop=0
frame= 1931 fps=136 q=4.9 size= 21770kB time=00:01:17.18 bitrate=2310.6kbits/s dup=829 drop=0
frame= 2012 fps=137 q=3.3 size= 22658kB time=00:01:20.38 bitrate=2309.1kbits/s dup=864 drop=0
frame= 2087 fps=138 q=2.0 size= 23474kB time=00:01:23.42 bitrate=2305.1kbits/s dup=896 drop=0
frame= 2169 fps=138 q=2.0 size= 24406kB time=00:01:26.68 bitrate=2306.4kbits/s dup=931 drop=0
frame= 2237 fps=138 q=2.0 size= 25174kB time=00:01:29.40 bitrate=2306.6kbits/s dup=960 drop=0
frame= 2304 fps=138 q=2.2 size= 25916kB time=00:01:32.06 bitrate=2306.0kbits/s dup=989 drop=0
frame= 2384 fps=139 q=5.7 size= 26862kB time=00:01:35.26 bitrate=2309.9kbits/s dup=1023 drop=0
frame= 2456 fps=139 q=6.0 size= 27678kB time=00:01:38.14 bitrate=2310.3kbits/s dup=1054 drop=0
frame= 2522 fps=138 q=8.2 size= 28416kB time=00:01:40.76 bitrate=2310.1kbits/s dup=1082 drop=0
frame= 2580 fps=138 q=4.8 size= 29072kB time=00:01:43.10 bitrate=2309.9kbits/s dup=1107 drop=0
frame= 2654 fps=138 q=3.7 size= 29882kB time=00:01:46.04 bitrate=2308.3kbits/s dup=1139 drop=0
frame= 2717 fps=138 q=3.9 size= 30612kB time=00:01:48.60 bitrate=2309.0kbits/s dup=1166 drop=0
frame= 2790 fps=138 q=4.8 size= 31438kB time=00:01:51.48 bitrate=2310.0kbits/s dup=1197 drop=0
frame= 2862 fps=138 q=4.3 size= 32240kB time=00:01:54.36 bitrate=2309.3kbits/s dup=1228 drop=0
frame= 2940 fps=138 q=5.1 size= 33122kB time=00:01:57.50 bitrate=2309.2kbits/s dup=1261 drop=0
frame= 3021 fps=139 q=4.5 size= 34038kB time=00:02:00.76 bitrate=2308.9kbits/s dup=1296 drop=0
frame= 3094 fps=139 q=5.9 size= 34856kB time=00:02:03.64 bitrate=2309.3kbits/s dup=1327 drop=0
frame= 3173 fps=139 q=4.1 size= 35762kB time=00:02:06.84 bitrate=2309.6kbits/s dup=1361 drop=0
frame= 3224 fps=139 q=4.9 Lsize= 36348kB time=00:02:08.80 bitrate=2311.8kbits/s dup=1383 drop=0
video:31558kB audio:3522kB global headers:0kB muxing overhead 3.613871%
Generazione DVD
Esecuzione comando:dvdauthor -o "/tmp/dvd-out" -x "/tmp/dvd-tmp/dvdauthor.xml"
DVDAuthor::dvdauthor, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <email address hidden>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: dvdauthor creating VTS
STAT: Picking VTS 01
STAT: Processing /tmp/dvd-tmp/menu1-0.mpg...
INFO: Video pts = 0.000 .. 271.039
INFO: Audio[0] pts = 0.500 .. 272.436
STAT: Processing /tmp/dvd-tmp/menu1-1.mpg...
INFO: Video pts = 0.540 .. 1.060
INFO: Audio[0] pts = 0.540 .. 1.020
INFO: Audio[32] pts = 0.540 .. 0.540
INFO: Audio[33] pts = 0.540 .. 0.540
STAT: VOBU 3 at 23MB, 2 PGCs
CHAPTERS: VTS[1/1] 0.000
CHAPTERS: VTS[2/1] 0.000
INFO: Generating VTSM with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: pal
INFO: Aspect ratio: 16:9
INFO: Resolution: 720x576
INFO: Audio ch 0 format: ac3/1ch, 48khz drc, 'it'
STAT: Processing /tmp/dvd-cache/entry001.vob...
STAT: VOBU 16 at 2MB, 1 PGCs
STAT: VOBU 32 at 4MB, 1 PGCs
STAT: VOBU 48 at 6MB, 1 PGCs
STAT: VOBU 64 at 8MB, 1 PGCs
STAT: VOBU 80 at 10MB, 1 PGCs
STAT: VOBU 96 at 12MB, 1 PGCs
STAT: VOBU 112 at 14MB, 1 PGCs
STAT: VOBU 128 at 16MB, 1 PGCs
STAT: VOBU 144 at 18MB, 1 PGCs
STAT: VOBU 160 at 21MB, 1 PGCs
STAT: VOBU 176 at 23MB, 1 PGCs
STAT: VOBU 192 at 25MB, 1 PGCs
STAT: VOBU 208 at 27MB, 1 PGCs
STAT: VOBU 224 at 29MB, 1 PGCs
STAT: VOBU 240 at 31MB, 1 PGCs
STAT: VOBU 256 at 33MB, 1 PGCs
INFO: Video pts = 0.540 .. 129.500
INFO: Audio[0] pts = 0.540 .. 129.340
STAT: VOBU 269 at 35MB, 1 PGCs
CHAPTERS: VTS[1/1] 0.000
INFO: Generating VTS with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: pal
INFO: Aspect ratio: 4:3
INFO: Resolution: 720x576
INFO: Audio ch 0 format: ac3/1ch, 48khz drc, 'it'
STAT: fixed 3 VOBUs
STAT: fixing VOBU at 2MB (17/269, 5%)
STAT: fixing VOBU at 4MB (33/269, 11%)
STAT: fixing VOBU at 6MB (49/269, 17%)
STAT: fixing VOBU at 8MB (65/269, 23%)
STAT: fixing VOBU at 10MB (81/269, 29%)
STAT: fixing VOBU at 12MB (97/269, 35%)
STAT: fixing VOBU at 14MB (113/269, 41%)
STAT: fixing VOBU at 16MB (129/269, 47%)
STAT: fixing VOBU at 18MB (145/269, 53%)
STAT: fixing VOBU at 21MB (161/269, 59%)
STAT: fixing VOBU at 23MB (177/269, 65%)
STAT: fixing VOBU at 25MB (193/269, 71%)
STAT: fixing VOBU at 27MB (209/269, 77%)
STAT: fixing VOBU at 29MB (225/269, 83%)
STAT: fixing VOBU at 31MB (241/269, 89%)
STAT: fixing VOBU at 33MB (257/269, 95%)
STAT: fixed 269 VOBUs
INFO: dvdauthor creating table of contents
INFO: Scanning /tmp/dvd-out/VIDEO_TS/VTS_01_0.IFO
INFO: Creating menu for TOC
STAT: Processing /usr/share/dvdstyler/data/empty_pal_ac3.mpg...
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
WARN: unknown mpeg2 aspect ratio 1
INFO: Video pts = 0.184 .. 6.184
INFO: Audio[0] pts = 0.184 .. 6.200
STAT: VOBU 10 at 0MB, 1 PGCs
CHAPTERS: VTS[1/1] 0.000
WARN: aspect ratio was not autodetected
INFO: Generating VMGM with the following video attributes:
INFO: MPEG version: mpeg2
INFO: TV standard: pal
INFO: Aspect ratio: 4:3
INFO: Resolution: 720x576
INFO: Audio ch 0 format: ac3/2ch, 48khz drc, 'it'
STAT: fixed 10 VOBUs

Revision history for this message
actionparsnip (andrew-woodhead666) said :
#2

Have you tried devede?

Revision history for this message
Ron Sorensen (xr440dude) said :
#3

I have a very similar problem. MP2 audio clip plays over black screen until ended, then main menu appears and audio clip start again, but I cannot interact with menu buttons.

Revision history for this message
marco.pallotta (marco-pallotta) said :
#4

@actionparsnip I have tried devede but the result is that audio background is not played but you can interact with menu buttons.
I supposed to be a defect of my DVD player but the result (I speak about both dvdstyler dvds and devede dvds) are the same with other DVD players (not very recent hardware) and with Ubuntu (totem or xine).
The strange thing is that audio background seem correctly inserted into DVD tree (I have found,in the DVD tree, an mpeg file that is just the DVD menu with audio background, and I suppose it is this the file DVD player should play).

I suppose of a bug of authoring process.

@Ron, thanks for your feedback.

Can you help with this problem?

Provide an answer of your own, or ask marco.pallotta for more information if necessary.

To post a message you must log in.