This has gotten more than a little frustrating.
After cleaning out the system of ALL files related to DaVinci Resolve and BlackMagic, including cleaning the registry. Emptied the Recycle Bin. Verified the system with ChkDsk, SFC and the utility System Mechanic to verify that there shouldn't be any internal problems. Downloaded and reinstalled the Program. Rebooted. Started Resolve. It started cleanly as a new install.
Created a project with the clips. Used the Generator to create a textured background. Added
the video collage effect to it. Inspector/Effects/video collage. Checked the Preview Tiles box. It thought about it for a few seconds then aborted. The window to report the problem showed up and I submitted it.
Restarted the program. Removed the Textured background. Added the video collage to the top clip. Effects/video collage/checked preview box. Abort. This time it did NOT give me option to submit the abort info.
Logs for this last run are in :
https://drive.google.com/drive/folders/ ... sp=sharingHopefully someone will be able to look at these and let me know what's going on. Or have the authority to submit this for BlackMagic's attention