Hi Steg,
I'm sorry for not replying sooner. Itch doesn't seem to notify me of comments here, so I need to update my settings to fix that.
As for the bug you mentioned, I totally agree it did not work. So I've released an update with a restructured process_enemy_attack script, adding a source_id and owner_id argument, so it now can process collisions, as well as make sure entities face the correct direction more efficiently. The enemy idle mask has also been adjusted, and set as the default, which makes it fairer for the player.
Hopefully it works as intended now.
Cheers,
Peter