Side button not working after repairs

So I had this issue with liquid in my charging port, I ended up needing to replace it.
I did the replacement and decided to change the battery too. After that I cleaned the sides and used new screen adhesive.
After that the side button stopped working, a little later it worked again, and not long after that it stopped working forever.

I thought I'd have to replace the side button, so I've repaired the whole charging coil with side button and volume buttons, but still the same issue. It's driving me nuts right now, the volume buttons, mute, and wireless charging are working.

Does anyone have any suggestions?

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