Describe the issue
If the code snippet contains a disk switch line, e.g. "D:", the subsequent highlight becomes all red. It seems to be connected with the colon.

Which language seems to have the issue?
"dos"

Seems to be the same with tags "bat" and "cmd".

Seems to work the same with and without space between ``` and the language tag.

Here in GitHub it seems to work correctly with tag "bat", see below under "Expected behavior".

Are you using highlight or highlightAuto?
Not sure. I was using this in an Azure DevOps Wiki page.

Sample Code to Reproduce

triplebacktick dos
rem This highlight works.
copy file.txt other.txt 
rem After next line it becomes all red.
D:
cd "D:\Folder"
md Tmp
del Tmp\*.* /q
triplebacktick

Expected behavior
The highlight should work normally even after a disk switch command, as here in GitHub:

rem This highlight works.
copy file.txt other.txt 
rem After next line it becomes all red.
D:
cd "D:\Folder"
md Tmp
del Tmp\*.* /q

Additional context
Found and tested in an Azure DevOps Wiki page, which seems to point to this repo in the docs: https://learn.microsoft.com/en-us/azure/devops/project/wiki/markdown-guidance?view=azure-devops#code-highlighting