Does DBUA upgrade OEM to point to new oracle home?

Hello,

    

I set up an export job using OEM (Data Movement, Export to Export Files) while running Standard Edition 12.1.3.0.  I later upgraded the database to 12.1.4.0 using DBUA.  The export job continued to work fine until I used the deinstall tool to remove the old 12.1.3.0 oracle home.  Once I did this, the export job started failing with message ‘Connect Failed: ERROR OCIEnvNlsCreate.  Check ORACLE_HOME env var, NLS settings, permissions, etc.  I deleted and recreated the export job and then it worked fine.  My concern is that DBUA did not update the original export job to point to the new