This bug is caused by the number of bandits killed being miscounted. (It happens time after time.) This is using your beta program for use with EE.
I would suggest that it could be solved by creating two extra bandits.
There is a bug which causes the Grey Clan Episode not to start. The solution using CLUA is found here: https://forums.beamdog.com/discussion/65928...-clan-mod-fixed but it would be better if it were included in the mod. Any chance of it happening?
A very similar bug happened with regard to the rats in Candlekeep playing Tutu. Creating an extra rat using CLUA solved the problem which in that case was minor. In this case miscounting the bandits killed breaks the mod.