SCEP clients updating definitions outside the time set in settings

Hi,

We're having a problem where SCEP clients are updating outside the time set for them to update.

All settings regarding the update deployment to those certain clients are set to update once a day at 23:00, but the client's are still updating at random times during the day. This is a problem because the hardware for those clients in question is quite old and it's happening at workhours so it seems to cause the computers to slow down while the update is installing.

Here are some screenshots of the settings regarding update settings for those clients.

Any ideas why the client's are updating outside of the maintenance window? As you can see it's not set to force the update outside of maintenance windows.

Thanks in advance,

Freyr