[tx] fix languagegroup visibility

[kaydeearts]

This should fix #1619

Checklist:

• I have followed the Contribution Guidelines
• I have added test code and data to prove that my code functions correctly
• I have verified that new and existing tests pass locally with my changes
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (added explanation to test)

[punchcutter]

Looks good!