After Remote PDB HOT Clone can't resolve "drop" pluggins violations.

Hi, I had clone a PDB trhought database link from CDB in with 18.3 release to another CDB in a remote server with release 18.12.

After run ./datapatch to equal the PDB with the new CDB release, I could open the PDB but I had two warnings in the following query:

1)

select * from PDB_PLUG_IN_VIOLATIONS where status!='RESOLVED';

NAME              CAUSE      TYPE   ERROR_NUMBER MESSAGE                                STATUS

------------------------------ --------------- --------- ------------ ---------------------------------------------------------------------- ---------

PDBT1           Sync Failure  WARNING     20000 Sync PDB failed with ORA-20000 while performing 'DROP USER "C##DBV_1" PENDING

                                   TMG"'

PDBT2           Sync Failure  WARNING      4068 Sync PDB failed with ORA-04068 while performing 'DROP USER "C##USR_PD_1" PENDING