Well, after I loaded my save (not a restart after a crash but I saw that my dupes stopped moving/working. Even the "Move to" order didnt help) the "Error Occured" window showed up. Old autosaves have it too. All dupes are invisible (like poor Travaldo) and are not moving.
Steps to Reproduce
Well.... i cant help with that.... maybe play 1338 cycles?
This issue has not been confirmed by a developer yet.