Here it is. For this one you got it, Eugene Loza!
Hmmmm... Interesting, my Lazarus doesn't show the stacktrace

The one that I didn't crop down to minimal reproduction yet - just shows addresses without lines reference (code compiled with Debug mode, so line info should be available), and the ones from the ticket - just shows exception/internal error and that's all.
While was typing understood: Aaaaaah, I guess I need to rebuild Lazarus/FPC itself in debug mode. Unfortunately I'm not that experienced user
