It randomly (but almost always craches) when opening files or creating new ones, then relaunches and freezes when trying to recover documents, or crashes again if you say not to recover them.
Apparently no crash report is created, so I can’t attach one.
[edit : in safe mode, no crash… I keep investigating]
[edit 2 : disabled OpenGL rendering => solves the problem. I have a end 2012 iMac with a NVIDIA GeForce GT 650M graphic adapter]