Is anyone having a bootcamp issue? I am new to bootcamp, but I have a bootcamp partition that I also occasionally use in Parallels, but I noticed today that I can't boot into it. I don't know if it was beta 1 or 2 that messed it up. I couldn't boot it through parallels either, so I removed it from there and added it back and it boots, but if I hold the option key when booting the computer I see the windows 10 partition and the MacOS partition but no matter which I select it boots back into MacOS.
Again, not sure if it was the update that broke my bootcamp, as I don't use it often but I noticed it about an hour ago.
UPDATE: probably wasn't related to the update. I repaired it with first aid in disk utility in repair mode.
This happened to me as well, and I did the same thing to fix it. Thanks for the tip!
Boot to recovery mode with Command-R during boot, open Disk Utility and repair everything you can click on.