CIFS - SMB Lock - Unlock

We are having some issues with SMB Locking of a file and then not releasing for others to use.

Has anyone played with the SMB2 Lock Request decode to look at the Lock_Element to see when locks are obtained and when they are released?

Or how often a lock request fails when it also has the Fail Immediately flag?

I setup a simple Packet Capture to give me something to walk through in the decode - but then thought - why not ask the Forum to see if someone has already gone down this path before.