A new compilation this day :
git pull .. script/feeds update install
after version is 4.14.115 and i cannot scan / find & associat AP in 5GHZ mode
tested with Xiaomi Mi Router 3G & YouHua WR1200JS and same problem
before i use old compiled firmware with 2 * Xiaomi & 2 * YouHua in WDS and not this problem
my last good version is : 4.14.87 reinstalled this day