Possible Fixes

Yes

Modpack Version

1.16

What happened?

I caught on camera the models resetting, I think it was at the death of a piglin "boss" from Infernal Mobs
The piglin model got reset, and even the blaze. Prior to that it happened to the wither skeleton too but I wasn't recording yet.

Here's the link : https://imgur.com/a/terrible-bug-3MxVWz5

latest.log

https://gist.github.com/PenguinMaster/d8127fdbbd9a378ea2176152d2681083

Developer reports

No response

I've had the same AND similar, where the "remaining" count goes back up, e.g., it might say, "6 remaining" and then for no reason, it's back up to, "11 remaining"... not a full reset. It first happened when I was fighting Ghasts and Wither Skeletons.

Possibly a related couple of problems are 1. When I put a data model in deep learner, it duplicates, and I now have 2 data models.
2. When I remove a data model from the Deep Learner, it just disappears, and I lose all progress with that data model.

Edit: I think it may have something to do with having multiple data models in the deep learner at the same time. Everything was fine until I started putting more than one data model in the deep learner. These issues are present in v 1.25 & 1.26.

I've had the same problem with the Wither Skeleton data model. After it was reset to the faulty model, I read a comment on Reddit that said the problem was solved after the data model was extracted from the deep learner. I tried the same, but my models were deleted after I got them out of it. So I tried deleting my deep learner and getting myself a fresh wither skeleton data model from JEI and put it in my offhand slot. I tried killing some but the data model kill count didn't increase at all.

I was having the same issue with it and found that having the deep learner in your charm slot/deep learner slot causes it to bug out like that, if you have it in your off hand (unsure about hotbar as I didn't test that) makes it work normally and doesn't reset the kills.