I just wanted to let you know of a bug that I have found (confirmed this in both Publisher and Photo), that causes the applications to crash immediately as if I was performing a force quit. I have been able to replicate this fairly consistently and therefore I think I have worked out what triggers it:
When selecting more than one layer in a project and you attempt to copy the layers using the copy hotkey (⌘+C) both Publisher and Photo immediately crash. Publisher crashes every time I do it and also when I right click the layers and select copy. Photo crashes the the first time I do this and then seems to work as it should for the next 24 hours (The next day I try again and it will crash as expected).
All my projects that I have worked with have had a mask applied to one or more of the layer, but I do not know whether this is what is causing the problem.
I wanted to bring it to your attention in the hope that this bug can get fixed soon.