Love community,
many of you, especially those who have ever had a Nintendo DS or similar, certainly know Nintendo's problem with shoulder buttons. You keep it pressed down, but the device sees it, especially when very light, different. Partly, an indecisive, shimmering input arises. Often you have to do it with high pressure, so that they remain normally activated, if they still work.
About Amazon I had now got 2 copies, both had this problem. To anyone with a Switch Pro Controller - Could you possibly check or report if you know this problem? According to my impression, the upper L and R keys are particularly bad, but the lower ones can also be affected.
Is it the originals of Nintendo? Never had this problem.
I know this problem and can agree with you as well. Personally, I do not have a '' Pro Conroller '', but have used one more times with a friend, and could make that observation there as well.
Unfortunately, L and R are no "pedals" as with Xbox and PS4 but only buttons to press. I also noticed that if you push too lightly, you will not get any reaction.
Definitely original
As you describe it can only yes n contact problem, possibly dirty? Would look after the controller and clean the board of the shoulder buttons. Can it also try unopened with video spray, but I advise against, because the rubbers underneath do not like something, or be porous.