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These are MCS / App Layered devices, and we are running FSLogix containers as well

we had similar issues, however it was caused by the Onedrive client. I wasn't actively involved with the call. @Colin White can you help ?

UPDATE: We finally got a mindump. Looks like Digital Guardian (our EDR software) caused a crash, and splunkd.exe is also involved. So maybe splunk kicks off--DG flips out...BSOD