I’m also having problems with this beta, where I get the error that Luau will not type check until studio is not restarted, and even so restarting studio doesn’t fix the problem. When I turn off the beta all my scripts fucntion as normal and the type check works.
Different issue, but caused by the same beta.
This is the full script. I’m encountering this on Windows 10. The code is just an example, accessing any child like this which does not exist yet when the code is written will trigger this.
@iSyriux mentioned having this problem in a Luau announcement thread.