That fixed it. Uninstalling the newer version, then adb installing the old version and running it prompted me for root access. Once I was able to run it as root, I tested the switch control from the app, and then when that worked updated the app to the latest version.
I’m now able to directly automate my front porch instead of relying on faulty IFTTT logic that never really worked right.
Phenomenal work! The Relay is now a feasible piece of equipment for the ST platform.