When you run beta software, especially a beta operating system, you
always subject your entire computer and everything on it to such a
risk. That's why I always recommend that nobody do this unless they do
it on an extra non-critical machine that they don't mind reformatting
and reinstalling on if they have to.
For anybody else, running a beta version of an operating system is
foolhardy.
Whether your problem can be fixed, I don't know, but this isn't the
place to ask. If you are an official beta tester, you should know the
appropriate place to ask. If you are not an official beta tester, then
what you doing is even more foolhardy.