i'm unable to drop database link sys_hub

recently applied patch 33513541/33516456

I followed How to Drop and Create SYS_HUB (Database Link) ? (Doc ID 2442938.1)

Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production

Version 19.13.1.0.0

SQL> drop database link sys_hub ;

drop database link sys_hub

          *

ERROR at line 1:

ORA-02024: database link not found

SQL> select db_link||': '||host from dba_db_links;

DB_LINK||':'||HOST

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

SYS_HUB: SEEDDATA

I've tried dropping it directly from TOAD and SqlDeveloper as well with same error...

Logging in as a dba, sys and sysdba... seems like it should be so easy...

i've recycled the db.. still no luck..