How to rename chapters to exclude language tagging?

[michaelwesten]

I'm unable to find settings for this.
My goal is to export .mkv output with a chapter menu that does not have language tags appended to the front of the chapter names.
The current behavior is the software appends a language tag even if there already is one.
Example input --> en:Chapter 01
Outputs as --> en:en:Chapter 01
I would like it to output as simply "Chapter 01" without language tag appended, let alone the extra one that keeps getting added

Thanks