While editing a document, I noted illustrations were deleted. Then I received a flash notice saying a crash occurred, but I could continue a short time after being told “obsolete package versions are installed.” The auto report function failed. Luckily, I was able to limp away, hopefully losing no more than those most valuable illustrations.
Data-loss bugs are taken pretty seriously. Is it possible that the illustrations were linked (not embedded?) and either the document or the images had changed path on disk?
In any case, please file a bug about this problem. The QA team will be very interested to help you track down this issue! Thanks!