ORA-1017 warning when trying to open a EBS R12.2 form

Hello,

I just finished all the tasks for upgrading EBS 12.1.3 12.2.10 on DB 19c multitenant.

When I try to open any form from EBS R12.2 I get the following warning then I click OK and the form opens.

"ORA-1017 invalid username/password"

After I enabled the audit_trail on the CDB I queried dba_audit_trail and noticed that there's failed attempt login by the user APPS.

So it seems when opening a form APPS account is trying to connect to CDB instead of the PDB

anybody faced this issue?

Thanks

Joseph