Seimitsu PS-KN-14 getting stuck

So I just installed these Seimitsu’s today and one of them is sticking and not coming back up once in a while. I also noticed that its “neutral” position isn’t sitting as tall as the others, it’s slightly sitting lower. Anyone know how I can fix this? It’s a really annoying issue when I’m playing online and my M attack is stuck…

Bump… Has no one ever had this problem before?

Beside taking out the button and check the spring / the switch to see what is wrong. There really isn’t much you can do. It could be a factory defect / broken / incorrectly assembled / etc. Have you tried taking it apart to look?

I’ve run into that problem before only once. The switch was busted…so I just swapped it out from a spare button I had lying around.