I'm stopping playing until this bug is fixed. I spent 5 hours, and got 3 different cutscenes, but no fight.
Tried killing rats, not killing rats, hit without lethal damage... even tried THROWING these damn rats into this hole! When I missed the rat, its attitude towards me decreased, but this did not help either. I’m thinking of collecting these rats and making a big bunch of them, screen them and send larian to a bug report (I already sent one).
Its not working too (I guess PC users have this bug too, but also have workaround):
I know why it happends and why not still fixed: release on PS5 release was later, fixes go through a bunch of development and testing stages. If only there was a debug console through which you could simply advance the quest further.