It has worked before and works for tabs that have not been recently modified, but when you save it no longer works for that tab.
You'll see on this page that the Mobile Banking accordion under Tutorials is empty, but there is script code. I've tested that the script code works on another page.
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Can you please reinstall the plugin and clear browser cache, see whats happening?
Also, please note, if you are trying to display 3rd party shortcode which is not available in free version, i am not sure which version are you using.