Some themes and apps do not support custom currency formats.

The app would not work when using these:

* SectionHub Page Builder

* Dynamic Product Options

* PageFly ajax cart

* Frequently Bought Together

* Language apps like WeGlot / Langify / etc.

* GemPages (you can contact their team and request for an integration)

* Themes by troopthemes.com - will show formatting code inside product pages.