Keys Issue - Not MIDI

[rcazzy]

Recently, the keys on my MK XL have started getting stuck while playing. Not sure why it was happening. I opened it up to see and it seems it's due to whatever tension the back of the unit and the mounting bar inside is that's making the keys stick.

I can send it for repairs, as I was going to do anyway, but if anyone has any tips on how to fix the issue, it'd be a great help.

Thanks!