Missing underscores in dynamic checkboxes

[timothyd09]

Describe the bug
When using dynamic checkboxes, the text for each checkbox is being populated from the TS variable. When these values contain an underscore character, the first one is always missing in the frontend display. Subsequent underscores do display correctly.

To Reproduce
Steps to reproduce the behavior:

1. Create a TS variable with delimited values that contain 1 or more underscore characters
2. Create a dynamic checkbox group in the frontend json file that uses the above variable

Expected behavior
All text values should be visible in the frontend

Screenshots
In this case, each checkbox entry should have an underscore after the word "Devices"
Example: Dentistry-Devices_Ortho
Note: If there is a second underscore, that one appears

Additional Info
When checking the TS variables created for these dynamic checkboxes, they are set correctly with the underscores.