Defective glyphs for script R and italic Sigma

[Glenwing]

The script R (mathscr{R}) glyph has a defect in the lower right leg. (CSS was edited to make font size bigger in the demo for better visibility. (The large curl on the top also looks a bit wonky with how it suddenly gets thicker near the end, but that's not as much of an issue at normal viewing sizes).

Defect is present in KaTeX_Script-Regular.ttf, .woff, and .woff2.

The italic capital Sigma glyph in the math fonts (KaTeX_Math-italic.ttf, .woff, and .woff2) is also defective, but doesn't show up in output, so it seems to not matter; I guess the glyph from KaTeX_Main-Italic (which does not have the same defect) is used instead of KaTeX_Math-Italic, even when using \mathit?

From KaTeX_Math-Italic.ttf:

Environment (please complete the following information):

• KaTeX Version: 0.16.8
• Device: Desktop
• OS: Linux Mint
• Browser: Firefox
• Version: 112

Additional context:
Add any other context about the problem here. If you're using a library to use KaTeX, please include its name and setup.