archives not deleting on standby (standby is in sync)

Hi all,

I have a 12.2 primary and standby database. On the standby I have a job to delete archives backed up 1 times to device type sbt_tape however sometimes it just doesn't remove the archives already backed up. If I go into rman on the standby and issue the command manually, it removes them.

I do have this set and haven't changed it yet

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE

Any ideas on why they archives aren't removing?

My script:

run {

allocate channel t1 device type 'SBT_TAPE';

allocate channel t2 device type 'SBT_TAPE';

send 'NB_ORA_SCHED=ORACLE_Logs';