I've been running Windows 10 Build 14385 for almost 24 hours with no crash!!
Wayne
Same here! 
I've been using 14385 since it was released and haven't had any more issues with DO crashing, either 11.9 or 12.0.9 beta. So, at least with 14385, this problem seems to have gone away.
Just installed the latest build, 14388, and so far I have not seen the Error Message popping up, YET. I have had the system running with DOpus running in the background as usual for about an hour now.
Will continue to monitor and report if anything happens.
14385 seems to have fixed this for me as well.
Two days now and no DOpus Error Messages. Looks like Microsoft finally fixed the problem, thank goodness.