Cannot convert markdown to docx

[shcabin]

markdown text:

---
hi
c:

---

When I executed the following command, it failed:
pandoc 1.md -f markdown -t docx -o 2.docx

error msg:

Error parsing YAML metadata at "2.md" (line 2, column 1):
YAML parse exception at line 2, column 1:
mapping values are not allowed in this context

Strangely, removing the colon (:) after 'c' prevents errors from occurring.
Is this a bug?

pandoc version：
pandoc 3.8.3
Features: +server +lua
Scripting engine: Lua 5.4

[jgm]

YAML metadata sections have to contain valid YAML, and this is not valid.
The error is coming from the YAML parser.
Do you mean to be including a metadata section, or are the --- intended to be something else?

[shcabin]

Thanks for your answer. I’ve been overlooking the metadata section.
What I actually need here is just the Horizontal Rule. Since the Markdown output by the LLM sometimes misses line breaks, is there any way I can avoid similar errors during the conversion process?

[jgm]

If you're processing LLM-produced Markdown and it's not using YAML metadata blocks, then you could always disable this extension: -f markdown-yaml_metadata_block.

[shcabin]

Thanks for your response. The problem is fixed now.