After dozens of different combinations of settings and configurations, I was able to finally get this device added to a room in my Shelly android app. What seemed to work was to remove the static IP I had already assigned to the device and then once it was added to the room, reassign the static IP. I did the static IP remove/reassignment in the browser rather than the app if that matters.
It all seems to be working properly now.
I'll also add that for some reason only some devices I have set up display the wiFi SSID name in the Settings>Device info area of the app. Not a big deal because they are all on their own wifi, but it seems strange that it is hit or miss whether that information shows in the UI or not.
My shelly gas and shelly plug does show the wifi SSID and RSSI but the others (door/window, flood) do not. may this is the battery vs 110V power?