Are you using pointer_null or pointer_invalid as your variable value per chance? Someone has recently discovered that these cause issues and I have fixed this for the next version. A workaround is to assign either into a global variable prior so that you are not referencing the values directly.
Viewing post in [Fixed in 1.0.48+] Error stack when starting a live room.
The issue doesn't replicate in a small sample project I just created for it. We have a very large 3D project with a lot of moving parts and I'm sure it is something in our code or one of the other extensions we use clashing with it. I can give you access to our repository so that you can take a look. Will that work?