Image disappear after further update
the problem so far: I've added an upload behaviour (as I've always did) to an update page. I have a field that permit to add an image to a technical paper. If I enter the update page and update the image, it works. If I enter the update page and update any other field, when I'm back to the detail page the image is disappeared, even from the database column.
I've search the code, but nothing different from any other page made with the same system...
The page is attached.
Thanks in advance