Hi,
like I said yesterday in the wrong thread (), the July 26th build is working great on my EAP225-Outdoor with WPA2 PSK (CCMP) and 802.11r Fast Transition enabled on both 5Ghz radio0 (QCA9886 / 802.11nac) and 2.4GHz radio1 (AR9561 802.11bgn).
Thanks again @svanheule!
Note: at first I had an issue with 2.4GHz but it was caused by an incorrect WPA2 PSK configuration.