If you use the CRS320 PoE++ Switch and plug-in a mAP lite AND you reboot the Switch after it, PoE won’t come back up again. It goes in an endless controller-error/controller-restart loop.
If you use 7.21, you can’t even fix this by unplugging every device and doing a cold-restart.
Starting with 7.22rc1 (just a half year later) your switch will recover when you unplug every device and restart, but when you plug-in your mAP lite again and reboot the switch, PoE for all ports is dead again.
If you need PoE, you maybe better don’t use Mikrotik….