AppleTVs regularly triggering STP

We have a bunch of AppleTVs hard wired into our network using a UDM Pro Max currently on 8.6.9

We recently upgraded from a UDM Pro, but this issue was before and after that change.

STP would lock out a port with an AppleTV even if it wasn't connected to WiFi as well. WE ahve had to move several of them over to WiFi instead of the wire just to keep them from regularly triggering STP.

Any other recommendations?

Again, AppleTV connected directly to an 48 Port Pro PoE switch without Wifi on would trigger STP