That's good to know. I may try a snapshot build as per diizzy's suggestion. I've already tried one of davidc502's custom builds and ran into the same problem. Probably spent 8 hours yesterday flashing and configuring and refreshing and configuring.
All I do when setting up is to set the SSID's, the radio channels (trying to avoid DFS issues), 802.11r with pmk push, lan static ip address, 4 port forwards, 18 static DHCP leases, ddns service with 4 domains, and openvpn service. I think that's all pretty standard stuff that shouldn't cause issues except maybe 802.11r is a more recent feature than the rest.