Hi Peter,
Yes in the edit page... will stop using the term resolve and get my terminology right next time.
I will do a video showing all I have found so far and get it to you in the next couple of days.
My issues are consistent on 2 different systems.
System:
Resolve 15 b5
Mac Pro (Late 2013) High Sierra 10.13.3 (17D102)
Proc: 2.7 GHz 12-Core Intel Xeon E5
Memory: 64 GB 1866 MHz DDR3
Graphics: dual AMD FirePro D700 6 GB
I/O Black Magic UltraStudio Express - Driver 10.9.12
Promise 8T Raid Array