Symbol "ɑ" for "open back unrounded vowel" missing with Pandoc
Minimal example document test.txt
to reproduce the problem:
---
header-includes: |
\usepackage{unitipa}
---
ɑ
Command and error message:
$ pandoc --pdf-engine=lualatex --fail-if-warnings test.txt -o test.pdf
[WARNING] Missing character: There is no ɑ (U+0251) (U+0251) in font [lmroman10-regular]:+tlig;!
The command fails or, if --fail-if-warnings
is omitted, the symbol is missing in the output PDF document.
Affected versions:
$ pandoc --version
pandoc 2.11.3
Compiled with pandoc-types 1.22, texmath 0.12.1.1, skylighting 0.10.2,
citeproc 0.3.0.7, ipynb 0.1.0.1
[...]
$ lualatex --version
This is LuaHBTeX, Version 1.12.0 (TeX Live 2020/Arch Linux)
All other vowel symbols (ä æ ø ø̞ œ ɐ ɒ ɔ ɘ ə ɛ ɜ ɞ ɤ ɤ̞ ɨ ɪ ɯ ɵ ɶ ʉ ʊ ʌ ʏ) are displayed correctly.