9139 Invalid unique primary index.
When an ExpReq from mgc was attempted using a key, no row was found that contained the key value and the dictionary table was read with access lock.
ExpRer, ExpRar, and ExpRst.
This is an internal error that should be handled by other procedures. It should not handled by other procedures. It should not cause a crash or be reported to users.
Redo the ExpReq with read lock only.