Just wondering … just leaving it as information
In my setups, I see 2 groups of MAC addresses for VAP’s. The first group is derived from the master WLAN and incremented. The second group starts with 02:00:00 (locally administered MAC address ???)

Those “locally administered MAC addresses” for WLAN did not work in one specific ROS release, they were on the “even” WLAN numbers. (Can’t find it back, years ago).
So just wondering if this might interfere or not.
EDIT: found it back … was ROS7.0beta8, not directly related, just gut feeling
http://forum.mikrotik.com/t/v7-0beta8-development-is-released/140169/1