Has anyone ever seen a similar error to following?

Backing up SAP via ADSM backint and sapdba/brbackup.

I get an err:
BR234E Unknown file (then it lists the right path & name for first redo log)
saved by backup utility

then at end it says
100 of 103 files backup up
and reports backup unsuccessful

the trace on ADSM shows no errs and a return code of 0
  - and it really did back up all 103, but by sap status is unsuccessful

SAP says for BR234E to contact vendor of backint