Hello, have you solved your situation? My situation is consistent with your situation.
The WD-40 Specialist Fast Drying Contact Cleaner I used makes my X button cannot work properly. After reading your question, I sprayed the WD-40 into the Y button to test again, and the result was like the X button.
My maintenance tools arrived a few days later. I would like to ask your situation. This seems to be helpful to my maintenance. See you, please reply, thank you!