If the compressed air suggestion doesn't work, you could also try 90%+ isopropyl alcohol which might work to dissolve any bits and is electronics/keyboard safe.

If the compressed air suggestion doesn't work, you could also try 90%+ isopropyl alcohol which might work to dissolve any bits and is electronics/keyboard safe. Otherwise, drop a line to Tuxedo support, I've seen XMG/Tuxedo guys be very active on their forums/subreddits, so I think you have a good chance of getting a useful response from them.