I noticed the ‘Y’ and the ‘X’ characters are not displaying correctly on my Mac Mini. They display correctly on my PC. What gives?
It looks like there’s some kind of font substitution going on—Luban normally displays everything in a sans-serif font, but part of your right sidebar has a serif font, and it’s the serif font that’s dropping y and showing x as a double-smart-quote.
My guess is that that font isn’t supposed to be there and something about it is confusing Luban. How the issue occurred, I don’t know. Best bet on fixing it would be to wipe and reinstall Luban, I think.