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cloning a remote PDB using mirror copy gives the error ORA-15385 in 21c

source and target are a 2 node RAC with FLEX diskgroup and compatible.asm and compatible.rdbms set to 

Source and target side details


NAME              TYPE  COMPATIBILITY                        DATABASE_COMPATIBILITY

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

CRS              NORMAL 21.0.0.0.0                          10.1.0.0.0

DATA              FLEX  19.0.0.0.0                          19.0.0.0.0

RECO              EXTERN 19.0.0.0.0                          19.0.0.0.0


BANNER

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

Oracle Database 21c Enterprise Edition Release 21.0.0.0.0 - Production



Source side

select * from v$asm_dbclone_info;

GROUP_NUMBER DBCLONE_NAME     MIRRORCOPY_NAME        DBCLONE_STATUS      PARENT_DBNAME  PARENT_FILEGROUP_NAME       CON_ID

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

      2 FOR$DB$ORCL     PDB2_MIRROR          PREPARED         CDBRAC_PDB1   CDBRAC_PDB1               0

  

Target side

SQL> create pluggable database newpdb1 from pdb1@CDB1_DBLINK using mirror copy PDB2_MIRROR;

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