Sarevok dialogue not starting?

[Drakmath]

Hello,
I'm playing through ToB for tje second time. I got the patch installed, but no mods. I'm using a neutral good character (20 rep). I have 15+ in game days played and just finished pillaging Sendai's enclave.

Is it normal that Sarevok still hasn't talked to me?
He does interact with other party members and gives comments while i'm talking to other people, but he won't start the 'alignment change' dialogue.

When I first gave him a piece of my soul and he wanted to join up I told him to wait for me and that I'd be back for him because I first had to snatch all Keldorn's good stuff so I could replace him with Sarevok. Could this be the cause?
Is there any mod/tool that can be used to manually trigger his dialogue?

Thanks for your time and answers.

[Darth Malignus]

I´d say that Shadow Keeper could be used to mingle with the triggers, or IESE. No idea how, though.