Updating firmware on my hAP ac from 7.1.3 to 7.1.5 wiped the config entirely... Again, each update gives more headaches than solves. This is it. Thank you, Mikrotik, this was my last piece of gear from you.

Half of my config is gone... Thank you for the "stable" update.

My hAP ac doesn't hold any configuration after a reboot. Before that, it completely obliterated my existed config on update.
/status/check-installation is OK