[Major Plot Progression Bug - Act 2 - The Duc Invitation]

I can confirm that I still have the same problem and can't side with knights.

[Major Plot Progression Bug - Act 2 - The Duc Invitation]

Have the same problem.

 

Finished all quests for the Knights and the Dozen. Also i annihilated the Doemenel.

The Dozen dont want to give me their invitation because i helped the knights, and the knights dont want to give me their invitation because i helped the dozen :/

 

I have the same problem. I did one quest for the Dozen before knowing Crucible Knights would have a problem with that. And even killing all the Dozens and having extremely bad reputation with them doesn't open up the conversation option with Knights.