I have a 3 node Server 2012 R2 cluster and I'm seeing VM's randomly resetting and an error 1069 is logged in the cluster errors. Some of the VM's that have reset have older (Server 2012) integration tools but a number that have reset are up to date.
The VM's have been very stable on our Server 2012 cluster and have only started doing this since they were migrated across last week.
Simon Holman
Expeed Technology
Australian Web Hosting