FNC Grid OnCellDblClick not working

We are using Delphi 12.1, TMS Web Core 2.6.1.1, TMS FNC Core 4.0.1.0 and TMS FNC UI Pack 6.0.1.1.
We adapted the FNC Grid demo, by setting Options.Editing.Enabled to False and assigning the event handler OnCellDblClick, but at runtime, nothing happens when double-clicking a cell.

Hi,

We have tested this here with a blank grid on the form and this works as expected. Can you point out which demo exactly you modified?

TMSWeb_FNCGrid.web. I also setup a new TMS Web application with a FNC grid. The issue remains the same, except that sometimes double-click is working but most of the time not.