Hi there. With Core 196 I’ve made the experience that a firewall rule stopped working as initially intended by me with SYN Flood Protection enabled.
It appeared that my Unifi devices in BLUE (access points, switches) could not connect towards a Raspberry Pi 5 running a flavour of the Unify Network Application in GREEN any more. The devices became offline in the Unifi Web UI; problem disappeared when switching SYN Flood Protection off.
If that is intended, fine, just to letting you know.