looks like the software has some issues with a PSK that is > 48 characters.
In that case if the WLAN service is enabled on the AP radio (1 or 2 or both) the radio will stay in scanning and don't provide service.
-PSK with 49 characters:
-WDS & WPAv2-AES WLAN service
Mar 10 21:41:31 cap: total VNSs /tmp/seccfg_00_0.cfg
Mar 10 21:41:31 hostapd0: 1552254091.808100: Configuration file: /tmp/seccfg_00_0.cfg
Mar 10 21:41:31 hostapd0: 1552254091.809415: Line 7: invalid WPA passphrase length 64 (expected 8..63)
Mar 10 21:41:31 hostapd0: 1552254091.809763: WPA-PSK enabled, but PSK or passphrase is not configured.
Mar 10 21:41:31 hostapd0: 1552254091.809885: 2 errors found in configuration file '/tmp/seccfg_00_0.cfg'
Mar 10 21:41:31 hostapd0: 1552254091.809989: Failed to set up interface with /tmp/seccfg_00_0.cfg
Mar 10 21:41:31 hostapd0: 1552254091.810106: Failed to initialize interface
File from the AP log:
AP3915i-2# cat seccfg_00_0.cfg
I've run into this issue after the upgrade from 10.41.13 to 10.41.14 because my WDS link wasn't working anymore.
This was also tested it with a normal PSK WLAN service with the same result.
I'll create a new ticket for this issue by tomorrow.