the logs are not getting marked (on the primary site) as appled

 Hi,It's been some time, the archve logs are getting applied to the DR db, getting marked as appled on the DR side, but the same logs are still marked as not applied on the primary site.

Here is an example:

primary site     DR site

SEQUENCE# APPLIED SEQUENCE# APPLIED

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

    64822 NO    64822 YES

    64822 NO    64823 YES

    64823 NO    64824 YES

    64823 NO    64825 YES

    64823 NO    64826 YES

    64824 NO    64827 YES

    64824 NO    64828 YES

    64824 NO

    64825 NO

    64825 NO

    64825 NO

    64826 NO

    64826 NO

    64826 NO

    64827 NO

    64827 NO

    64827 NO

    64828 NO

Why is this happening and what needs to be done to get it back to norma.?

Thanks!