No change after full xcp (8.2.1) patch and reboot. The VM in question started without issue as well. For reference, I'm using XO commit d044d (currently 11 commits behind) on Master commit 6d34c. I will leave as is since everything is functional to see if the future commit helps. I should be able to revisit at the end of the week to rebuild on the latest XO commit and test.

And we are blown away by our wonderful community! Thank you very much, and happy to help you!

@stevezemlicka Thanks for mentioning this and reporting your "mistake" on the forums. I had been banging my head against the wall for a day before finding this post and realising the obvious.