I replaced my battery successfully, but 3D touch to longer works, and reachability freaks out every time I'm asked for a touch ID prompt.

The only damage I did was ripping open the wireless charging coil sac, then gently placing it back. The coil itself was unaffected, but whoever replaced the battery last used the wrong adhesive; it stuck to the sac. (it was me; I was the last guy)

Does anyone know what might have gone wrong?

Replaced the seal pretty solidly, so I'm not sure if there's a cable I need to try plugging in again, or to check if I nicked something during repair.