Current Status
We are aware that some users experience crashes when uploading photos from their Android photo library. Google is working on a fix that will be released in an upcoming Android update.
What You Can Do
If you experience a crash, please tap "Report" on the crash dialog. This helps Google's team resolve the issue faster.
We've also heard reports that the following worked as a fix: Remove all updates of the standard Gallery application from Samsung and install it again.
We apologize for the inconvenience and appreciate your patience.