I've had bookmark crashes for a long time, haven't pinpointed why, but it's something to do with a bookmarked event that no longer exists, yet it exists in the bookmark bar. When you double-click the bookmark, it cannot find the event associated, and then crashes.
I am so worried about the crash that I always clear my bookmarks often, just in case one of my bookmarks has turned rogue and might crash.
I have often opened a project, see the bookmarks, double click some, and 1 might crash the project. Also in the middle of working on a project, I often use bookmarks to quickly get from A to B in a long event sheet, so sometimes I get a crash when I'm in the middle of working on something - it's gotta be something related to cutting or deleting a bookmarked event.
I wonder if a quick fix could be done by Scirra with this limited info, like upon clicking a bookmark, check the event exists before trying to jump to the event. Problem is though, how will be prove its fixed after? Hmm.
I'll definitely create a bug report if I figure out what exactly causes it.