Looks like I am struggling to get a callback from this.
What is it I’m doing wrong? Thanks,
Good morning! Let me take a look 
There was a bug in the code, a PR for fixing it is here: Properly notify textHighlightObservable by carolhmj · Pull Request #13410 · BabylonJS/Babylon.js (github.com)
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Thank you and have a great day 
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