Problem updating image

Hi,

i have xibo server 1.6.0 updated to branch 335.Logged as xibo_admin.

If i try to update an image in a region, with or without 'replace all layouts....' checked, the screen displays the black page with the xibo logo.
in the region media and in library page the item result updated with the new image....

to make things work i need to delete or unassign the old item and add the image.

Thanks,
Mauro