Did a little track on Sunday with Digi, Eurorack, and a Sub Phatty. Pretty stable (although I only used factory samples and didn't sample or import anything).
I did come across a situation where Midi A wouldn't play anything in a newly created project, it didn't matter which channel I chose, no MIDI notes on DIN or USB. But I could not find anything wrong. Fixed it by copying the (working) Midi B channel TRK onto Midi A in the same pattern.
Also the FUNC+COG save project crashed once. Menu saving has been ok.