Comment 21 for bug 1790595

Same error with v4.19-rc2. I run apport-collect with v4.19, it create only two posts after you.

[ 98.377153] usb 1-5: new high-speed USB device number 5 using xhci_hcd
[ 98.504474] usb 1-5: config 1 interface 1 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64
[ 98.504482] usb 1-5: config 1 interface 1 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64
[ 98.504873] usb 1-5: New USB device found, idVendor=0e41, idProduct=414d, bcdDevice= 0.00
[ 98.504878] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 98.504881] usb 1-5: Product: POD HD500
[ 98.504885] usb 1-5: Manufacturer: Line 6
[ 98.527466] snd_usb_podhd 1-5:1.0: Line 6 POD HD500 found
[ 98.528210] snd_usb_podhd 1-5:1.0: Line 6 POD HD500 now attached
[ 98.528242] snd_usb_podhd 1-5:1.1: Line 6 POD HD500 found
[ 98.528244] usb 1-5: selecting invalid altsetting 1
[ 98.528246] snd_usb_podhd 1-5:1.1: set_interface failed
[ 98.528250] snd_usb_podhd 1-5:1.1: Line 6 POD HD500 now disconnected
[ 98.528257] snd_usb_podhd: probe of 1-5:1.1 failed with error -22
[ 98.528271] usbcore: registered new interface driver snd_usb_podhd

I bought that device when I used 14.04 KXStudio with kernel v3.14 and error was present there.
I start a thread at https://ubuntuforums.org/showthread.php?t=2385101. After Temüjin answer i install Ubuntu Release with kernel v4.15 - Kubuntu 18.04? but still no luck with POD HD500.