Standby database MRP problem WAIT_FOR_GAP

Hi,

Previously there was a configured stb database but since a lot of time had passed when the databases were not synchronized due to lack of space in the reco group I did again duplicate database PRIMDB FOR STANDBY NOFILENAMECHECK; Oracle 11.2.0.4.0 Backup is configured with ZDLRA. After rman duplicate I have problem with MRP:

MRP0 WAIT_FOR_GAP 1 121856

On STB: select current_scn from v$database result is 1.2492E+11

On PRIM: select current_scn from v$database result is 1.2498E+11;

SELECT name, sequence#, archived, status FROM v$archived_log WHERE sequence# = 121857; sequence 121857 is archived (yes)

After command ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION