How do I correctly replace active edge/grip sensors?

Hey there! I am replacing the active edge sensors on the side rails of my pixel 4, but I can't seem to do it correctly. I've now put my second sensors on, and still I cannot get the sensors to function as they should. They either are very sensitive no matter what I change the sensitivity setting to in the phone, or, as they are now, they instantly fire and don't release. Any suggestions?