The game cannot launch with the Pro version of Physics which adds physics to Banner & Cape

If a fix could be found it would be incredible or if it is impossible it should be added in the Incompatibilities section :p

Could you provide a crash log?

The game is stuck in a loading loop, it doesn't crash by itself so here is the latest log
latest.log

Sorry for the late answer, this problem has also reported to me another time lately and I managed to fix it.
I'm going to upload a fix on curseforge soon