Shot in the dark, but it worked for me once before...
Reinstall your game and the expansion.
For whatever reason, mine corrupted and did that once.
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Shot in the dark, but it worked for me once before...
Reinstall your game and the expansion.
For whatever reason, mine corrupted and did that once.
I've been having a very similar issue as OP. It's pretty annoying, especially when every other game I play isn't giving me issues.