Hi,
Thanks for letting us know, and sorry you're running into this right at the beginning.
We've noted the issue with the character falling through the floor after the first cutscene. And thanks for trying all those fixes already, that helps rule out quite a few things.
We'll pass this to our coder and take a closer look at the collision/loading around that scene. We'll also keep it in mind for the next technical update.
Really appreciate you taking the time to test the build and report it. Sorry again for the trouble, hopefully we can get this one sorted out soon.
Best,
Gayeti Team