The font does not appear to have pre-composed glyphs for ǎ, ǐ, ǒ, and ǔ, and does not place the combining caron correctly above those glyphs. This makes the font unsuitable for Pinyin transcription of Chinese.

These issues were identified using the text areas on the Indestructible Type page for the font using Firefox 137 on Linux Mint 21.3.