Hi Hejden,
Yes, bug includes all audio from editor, including during play.
There is no way to revert to an earlier version of Preview binary. Preview 6 is not far off, though, so you won’t have long to wait. Generally it is not a good idea to do your main development in a Preview build; they are out so community can get a feel for new features and give us feedback and bug reports, but they can be released with many bugs.