When adding an IWR activity from the wall chart Activity pop up, after tapping save you get the three dots hour glass.

When adding an IWR activity from the wall chart Activity pop up, after tapping save you get the three dots hour glass.

When adding an IWR activity from the wall chart Activity pop up, after tapping save you get the three dots hour glass. No data is lost.

Workaround: Refresh the browser page.