Which problem exactly you have?
We have fixed in the recent 6.42RC versions where the CAP interfaces were removed and added back if it looses connection and tries to reconnect for multiple CAPs at the same.
Let´s look at the controller: This is happening from time to time, sometimes after some hours, again and again for all of my access points (currently) running 6.41
network is fine. My assumption is that the new bridge implementation from 6.41 on the access points is the problem and let the controller kill the connection to all access points within seconds.
Looking at some of the access points I found strange settings:
Also after killing that one and rebooting it, I also got "ghost" settings, e.g. within interfaces old "dynamic wlan" entries although no client was connected, or within /interface list "dynamic" entries with no interfaces. Perhaps I downgraded/updated to much those access point from 6.39.* <=> 6.40.* <=> 6.41 in the past...