So, I recently acquired my first mechanical keyboard, a Rosewill Helios RK9200 with MX blue switches. It's brand new, I've only had it a week or two. I noticed that the left shift key has trouble coming back up compared to other keys and its really bugging me. I took of the keycap and tested depressing the switch, and found that it was the switch itself that was doing it, not the stablizers messing it up. Could this be fixed by lubricating the switch? If not, does anyone know if this keyboard has replaceable switches?