I’m without I clue, so probably my hint below will be useless, but a while ago my 2 systems 100% crashed after a plugin scan.
After a while and with some help I found out this happened because of some instruments-plugins which were located in a wrong location, or even in 2 locations, which confused Nuendo.
I am not sure how to read a crash report, but (I think that) yours tells us your computer is quite busy with GrooveAgentSE?
Maybe there lies the culprit?
What happens if you let Nuendo scan your plugins? Does Nuendo return a list as it should? I mean; are there no issues like I experienced earlier this year?
I hope you can trace the issue.
Good luck.
Niek/ Amsterdam.