EDIT: see below for a list of things already fixed or tracked
This is strictly not putting entire blame on GemRB but I want to warn other players who wants to play with mods on GemRB. There are few caveats they should know especially when doing mega mod installation.
Game breaking immersion bugs:
-when hiding in shadows NPC will become hidden immediately even if she/he fails to do so
-sometimes random NPCs can die when you enter the area (ghost child in the Graveyard district or Al
Mod related bugs/issues are marked by violet.
I dunno if this is bug but the console is spamming messages like [EffectQueue]: Edwin is immune to effect: ApplyEffect. The name of the NPC seems not to matter.
-missing experience for turning creatures into stone and imprisoning them. (Isn't this vanilla behaviour?)
-Snivrebins have gnome avatar (Aurora Shoes and Boots) (should be halfling? What is this guy's animation id [ctrl-m])
-Vanilla better unsellable item icon