Trying to install Plex in Truenas Scale and getting "Failed to create Network"

My Truenas Scale network configuration has both a /24 and a /32 and apps won’t install unless I click the “Host network” option. Plex has this option, but when it’s installed, I can’t get to the GUI. Home Assistant doesn’t have this option and when I go to install it, I get “failed to create network”. Any ideas on what I’m doing wrong?

Server is a Fujitsu RX1330 M3.