Applying different content text

[DLB040153]

I'm trying to setup several copies of checkbox 9 with different before and after content pairs. I've copied the css for checkbox9 and renamed the copy as checkbox001 with content before text "YES" and after text "NO". I have the checkbox appearing and behaving properly but with no visible text. Examining the code with the Inspect(Q) development option (latest Firefox under latest debian Linux) shows all elements as expected including Before and After entries but none contain any text. Any pointers would be much appreciated.

Not really a bug, more an expansion requirement, apologies for that, I hardly ever use GitHub and took what seemed the easiest option.