Yeah i know, but i did experience this, L2/R2 when didn’t connected (without conductive film) it sometimes does pressed itself, but when i connect it to the conductive film the L2/R2 stop pressed itself, i don’t know if all type controller like that but i did experience it sometimes. If with the tissue bump didn’t work i think you should try to replace the conductive film itself but you did say you already tried doing that so i don’t know any other way.
FYI the case where you can’t upload image or link it’s because you are a new member so the you are not unlocking it yet to prevent spamming. You need to login for 5 days strike or posting a few discussion like this, answering other problem is a way too.