Blender has problems with storing cache after bake.
Everything was going well. But I do not know how but I has save file with the bake cache ( file size is big ) and Blender after file open show that there is no baked scene light.
Trying to bake causes CRASH after finishing or stopping baking.
When I used External Data -> Unpack All into Files, then Blender has "flushed zombie" cache and file was saved with lower size but now still baking process causes CRASH after finish or stop.
there is a link to files with "zombie cache" and "flushed":
Maybe dev should give option to create an external file for baked cache.
Second problem ( do not know if related ) is loosing textures in Eevee (black materials).
A Third problem was "bread loaf" material was causing a crash to when going to material tab. ( I have fixed it by erasing old material and reattach it again ).