Yup, there's a bug which (hopefully) has been resolved, haven't had a chance to test.
From the bugtracker:
2014-09-08 15:48
ID: 0000508: Animation render randomly crashes
2015-03-27 11:57
"Should be fixed in v0.2.0.2 (version for testers, public version will be soon). "
We're waiting for release.