Please post a logfile from a session where this issue occurred, and we'll be happy to take a look. :)
There's a pinned thread at the top of this forum with instructions on how to post a logfile.
I heard downgrading it can help but I have no idea how to do that.Search for "AMD radeon software" within this forum and you'll earn alot of hits regarding your issue:
Search results for query: AMD radeon software
obsproject.com
It's related to the amd software version you are using.