So I originally planned to clean my keyboard so I took out all my keycaps but I forgot about it afterwards. So I left my CM Quickfire TK cherry mx blue switches directly exposed to all the dust in my room. When i finally got to cleaning my keyboard and keycaps, I felt that it was a little bit harder to press down on the keyboard when the keycaps was back on. I tried to clean the switches by dripping a bit of water and hand sanitizer in it and also tried to blow some compressed air into the switches. Any suggestions and explanation as to why some of my switches are harder to press? Could it be foreign particles and dust entering the switches?