Audio going out of sync in preview - SOLVED

This is something I was struggling with in the past and now it seem to come back to bother me again. When I preview my edit in edit page my previously synced clip seems to go a bit off sync with time. This way all my cuts made to the music bit goes slightly off. Strange thing is that when I stop the preview and then play it again everything seems to be fine initially and then again the sync goes off with time.

My project contains .mov 1080p, 50fps translated to 25fps. Timeline is 25 fps and is 25 fps as well. Not sure what could be the problem

I'm having same problem. Mine started when I went to Resolve 15.0.0B.065. What version are you on?

Thanks to Enrico from Black Magic this problem was solved. It turned out I had 25fps timeline and media in my project while 24 fps preview settings. After correction to 25fps preview, everything in my timeline was in perfect sync. This is totally my fault. I let default 24fps preview settings thinking it's not going to affect my workflow - just unnoticeable slower preview ... well I was totally wrong.
Thanks Enrico.

Thanks to Enrico from Black Magic this problem was solved. It turned out I had 25fps timeline and media in my project while 24 fps preview settings. After correction to 25fps preview, everything in my timeline was in perfect sync. This is totally my fault. I let default 24fps preview settings thinking it's not going to affect my workflow - just unnoticeable slower preview ... well I was totally wrong.
Thanks Enrico.

how did you contact them directly about this?
I need help as well