Issue with nested data labellings

[azure31]

I have a conditional data labelling config where some of the labels appear only if a particular choice is selected. I'm using a View tag with visibleWhen="choice-selected" option. The config file works on the label studio playground but when I try to embed it as per the example here, I get an error with message:

Types.js:18 Uncaught Error: Not expecting tag: view.

However, if I remove the View tag, it works fine. Can somebody suggest what could be the issue? Thanks.