Well, I have a Outemu Blue Switch mechanical keyboard for like 5 months , I've used some contact cleaner to solve "double click" problems , but I've noticed that the "ESC" and "E" keys wasn't making the clicky sound as before , now they sound like brown switches , and have a mushy feeling , and the white part (the one that make the clicky sound) of the affected switches are moving slowly when I press the key , not making the sound , neither feeling of a blue switch.
There is any way to fix it without desoldering and opening the switch ?