Game crash due to eveolving brawler in arena in Niflheim

1- Bifrost Duo
2- Win11
3- DirectX
4. I can replicate this bug
6. Seed shouldn't matter, size small

I use souls to evolve my brawler in the arena in a wolfskin. Before the last hit/ the transformation of my brawler, the game crashes. This also happens for boarskins. Nothing else is happening on my end. No scouting, no building or fighting in other areas.

2 theories on my end:
1. There are other types of animals in the map (Niflheim). So the game does not register the absorption of the type of animal correctly, since the arena contains normal type animals, but the map does not allow that to happen.
2. I have 2 types of blades of upgrades from previous maps and the damage ticks coincide with the transformation. ( This is less likely as I had those blades the previous map and it worked fine in Idavall)