I can reproduce this. Marking as confirmed.
** Changed in: Ubuntu
Sourcepackagename: None => gnome-panel
Importance: Undecided => Medium
Status: Unconfirmed => Confirmed-- Dropping image files onto panel paints top panel over bottom https://launchpad.net/bugs/80536 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
