How to rename chapters to exclude language tagging?

[michaelwesten]

Given your description, I have no clue what you are doing.
Hybrid does not have a concept of languages for chapters.
Hybrid does not add a language short to chapter names.
Hybrid does not have any ability to create a 'chapter menu' (<= not sure what you want to describe with that phrase).
=> Provide proper details (read the sticky) if you hope for help.

Cu Selur

I'm using a source input .mkv and re-encoding it
the input also includes a chapter menu that I'm passing thru to the re-encoded output .mkv
The mkv remuxer within Hybrid does have a concept of languages for the chapter menu, the same as mkvtoolnix does
Screenshots here showing the hybrid chapter tab and chapter editor, and the mediainfo of both the input file and the output file