APs not sticking with specified Candidates Channel

Hi, so I’ve mentioned specified candidate channels for 2.4Ghz as 1 6 11 with channel width as 20.

Some how the APs are not sticking with these channels, I can see an AP on channel 10.
What am I doing wrong, if someone can point me in the right direction.

Can you show the device page? Maybe it was set there?

Can you please check is the config sync on that particular AP was successful or not.

So, IP 43, which was on channel 10, has moved to channel 1. And now IP 44 is on channel 7. All of them are on firmware 6.4.2.1-r1

All of them are in-Sync:
image

I didn’t set anything on the APs except override IP settings, with VLAN1 IP static.
IP 44 Radios:
image

and it’s radio override config:

EDIT:
Channel distribution now are all over the places:

image

Update 2:
With the AP group, I switched 2.4Ghz to manual power, and then switched back to Auto. This seems to have fixed their channels for the time. Need to see what does OCS do: