I believe this was fxed but it seems its not updated for everyone
Here is what you can do for now.
If you are familiar with editing scripts in notepad its easy
In / scriptbank / ai /module_combatmelee.lua
commenting out line 64, will fix it.
Line 64 is:
module_core.debug(e,AIObjNo,PlayerDist,combattype)
Put "--" at the beginning of it to comment it out. i.e.:
-- module_core.debug(e,AIObjNo,PlayerDist,combattype)
No one ever really leaves.