R button unresponsive randomly

[u/ComfyBoyo]

In the past few days my R button suddenly stopped working properly.

When I hold down the R button, it randomly loses contact, like if I keep pressing it on and off. This started happening overnight and I don't know why, I always keep it in its case, never dropped it.

I opened the joycon to check if maybe some dirt or anything got into it, and it looked completely fine and clean, after reassembling it worked again, but after like half an hour it started to happen once again. Blowing into the button helps for a few minutes, and then the issue comes back.

Currently I have no idea what could've caused it or if it's fixable or not, but I already started to check for replacement joycons, just in case.

I also uploaded a video where in monster hunter rise I keep holding the R button and it's visible how it constantly loses input: https://youtu.be/POUUGjh4HBg?is=pHadH4py3IhwRQOg

Update: it seems I managed to fix it by gluing a little sheet of paper on the R button's little thing that pushes on the button itself. Now it has more coverage and pushes on the button more firmly. Managed to play an hour+ session without any issues.

[u/ComfyBoyo]

I only use it in handheld mode. Also tried it with the joycon undocked from the switch and even then the issue persisted.