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i’ll chip in here and say i had a couple of closures on my 970 too. i’m rendering a different scene now, one w/ fire/smoke sims in so maybe that’s a place to start looking ~ i’ve rendered about 200 frames on the scenes previous to this, both w/out fire sims, so this may logically be the culprit. however, i’ve asked elsewhere on this site about 2.8 fire sims and my baked data was misplaced;

so maybe this is a contributing factor?

Didn’t have time to look into it, but i’ll try and give it a run on the 980 tonight and run it via CMD so i can see any error messages.
cheers