docx writter:error render of \underline{} in equation

[ilcpm]

from markdown to docx

$$\underline{123}$$

[jgm]

What does pandoc --version say?

[ilcpm]

I tried it on pandoc 2.17, find 2 bugs and updated to the newest pandoc 2.18, one is fixed, the other one is this

pandoc.exe 2.18
Compiled with pandoc-types 1.22.2, texmath 0.12.5, skylighting 0.12.3,
citeproc 0.7, ipynb 0.2, hslua 2.2.0
Scripting engine: Lua 5.4
User data directory: C:\Users\Ruossipha\AppData\Roaming\pandoc
Copyright (C) 2006-2022 John MacFarlane. Web:  https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.

system: windows 10 21H2 word version: Office 365 ver 2205