The current version is 6.1a. 6.1 had several issues. Even with 6.1a, I think a new game is needed to get through that quest. The quest is finished - the whole 2nd arc is complete. Although there are still some text placeholders. If you still have issues, post the issue in as much detail as you can, along with a log file to show errors, and a screenshot to the Strive: Conquest discord.