I run three saved games.
I started my festival day with my lowest level character and was able to buy all the things, and complete the entire festival offerings without a single bug or issue.
My second game was with my maxed out, longest running character. I am experiencing the foreign resource bug and cannot finish the "War Effort" quest because of it. I was able to buy and experience everything else without issues.
I decided to go ahead with my third save game. This is a maxed out skill-level character (still plenty of mastery point room) and hasn't finished all river raids so I though it would be safe.
I was able to complete all tasks for the "War Effort" but the final tick on the bar did not move and complete the quest to the next stage of talking to Sunniva. The mission is stuck on "check the idols for things to do" part, but none of the idols have clickable icons, and I finished all of the tasks anyway.
The only thing I can think of, is after I won the Orlog game, I went to Ake to do the Flyting. My game crashed during the flyting. When I loaded back in from an autosave file, I had to complete the Orlog again, and was able to complete that and the Flyting and then this bug occurred.
Let me know if a save file or screenshots would help. Or should I just open a support ticket with those items?