So, I just removed a snapshot from my ESXi server, and the resulting VM became invalid as a result.
Anyone familiar with recovery methods or am I likely going to have to recover or rebuild it?
You will need to edit the vmx file (Harder in ESXi, but doable) and replace
scsi0:0.fileName (Replace the 0 with the SCSI controller and Drive number appropriate for the drive with the missing snapshot) = "VM.vmdk" (Where VM is the VM name if it is the second disk this will be VM_1.vmdk etc)
This will allow you to start the VM in crash consistent state.
Rember to backup anything you edit.