I have the same issue. I updated a host from 6.5 to 6.7 then attempted to restart the VM and getting this error
Transport (VMDB) error -45: Failed to connect to peer process.
I checked the storage and the drive has plenty of room so its not the lack of space issue others have seen. I have also attempted to clone VM's to this host in testing. When they arrive on the host I get the error attempting to power on. When I move a VM to the host same issue, but after moving back to the previous host all is fine. What is going on here?
I also attempted a trick found on other forums. They said to remove the VM from inventory and add it back. Still same issue. I can no longer use this host with this problem