This of course makes it hard to complete the quest for Imoen.
I suspect it is the G3 Anniversary Mod that is causing trouble (I use the list I have posted in the "Balanced Mods" thread), as it has corrupted a lot of text files and there is a part of it to be solved in Five Flagons.
Possible spoiler
My questions are:
1. What do I do to overcome the problem?
2: What could I write in Shadowkeeper's Global Variables that would make the game think I
Spoiler
have talked to the Rival Guild contact in Five Flagons?