I have one VM where Workstation keeps changing the owner and group of *.vmem and *.vmss files to root. None of my other VMs exhibit this behavior. It does not seem to affect the running of the VM. It's major annoyance is that VM does not remember the VM the next time I enter and the preview screen, which normally appears for a suspended machine, does not appear.
Why is Workstation resetting permissions on these files? I don't mind it taking root, but put the original user and group back when done.
FYI, the drive is formatted ext4 and I'm using Ubuntu 12.04 AMD64.