I ran into an odd bug with printing glyphs. I think what's happening is that if it detects a button glyph being used on a line with a btn() or btnp() function, it replaces all instances of the button glyphs on that line with the appropriate button number. This is a problem if you do something like the following two lines of code (obviously using actual glyphs instead of these unicode chars):
The following gif shows the code for the cart above: