AIP Scanner not applying sensitivity label

We are trying to apply a new sensitivity label on a Windows file share, but the label is not applying.  We have about 15 other labels setup and working.  We set the new label up the same way -- same settings  for the label policy, the repository, etc..

The label is published -- I can see it from Word or from the "Classify and Protect" client.

I can login to the AIP Scanner server as the AIP scanner user, browse to a file in the repository and apply the label with Classify and Protect.  This seems to rule out permission issues or a problem with the label published policy.

I have tried stopping and restarting the AIP scanner service, as well as rebooting the server.

I can't seem to find a log that gives me any information as to why this label is not being applied.

Is there a log I can view to see what the scanner is doing when it hits this respository?