Hi!
It seems RouterOS it's using some kind of cache when checking for updates.
The main router of a place (Hex device) detected and upgraded correctly, but a cAP connected to that Hex it's not detecting it exists a new version of RouterOS.

It's not the model device because I updated now another cAP in a different place without any problem.

I see this several times, and If I wait some hours those devices which doesn't detected the new update now will detect the new update.