no encryption key for cloned pdb is imported after imorting it

Hello,

i need to clone a pdb database from one cdb to onother cdb with TDE enabled. RDBMS version is 19.13.0.0

I exported the encyption key and i imported it with this statement

SQL> ADMINISTER KEY MANAGEMENT IMPORT ENCRYPTION KEYS WITH SECRET "mysecret" FROM '/u02/stepp.exp' IDENTIFIED BY "Welcome#4U" WITH BACKUP;

keystore altered.

the status of the pdb's wallet

SQL> select p.con_id, p.name, p.open_mode, ew.wrl_type, ew.wallet_type, ew.status

from v$pdbs p join v$encryption_wallet ew on (ew.con_id = p.con_id)

order by p.con_id; 2   3