If you have tried all four methods and the error still appears in logs, you may have a corrupt license binding or a deeper server-side issue. Gather the following before calling support:
Some subsystems use a dummy resource named after a storage key (e.g., MVSKEY.1 ) to serialize access to programs running in that key. If a job holds an exclusive ENQ (e.g., SYSZDD R MVSKEY.1 EXCL ), any subsequent request for exclusive control of the same resource will fail with “NOT FOUND EXCLUSIVE.” mvsckey not found exclusive
if corruption is suspected: