With firstpersonmodel and the six other dependencies linked in both the relations tab and in the main text, the player model renders just fine:

Throw Immersive Portals into the mix, and bye player model:

Doesn't seem to be an issue anymore, just issues with tilted portals #355

That is odd, I guess immersive portals somehow has special logic to make the travel of entities seamless, which is now breaking? I'll look into it.