I created a template with a Mermaid chart in it. The chart works fine on my pc and my iphone. However, it doesn’t work on my android e-ink tablet.

If I preview the chart in edit mode, it looks fine. It also displays on the in-app browser if I go to the web version. So, I know that the app on the tablet is capable of showing the chart. However outside of edit mode and web view, the chart disappears.

FYI This is an e-ink tablet so it’s using an old version of Android (Android 11). My best guess is that javascript is somehow not enabled in the app but I can’t find an option to turn this on.

Mermaid chart is an experimental feature. I don't think it is supported in Android.