Problem with Azure Maps on Mobile Devices

I am new to Azure maps, switching from Bing Maps in advance of its demise. My simple trial application works correctly on Windows, but map events (I have tried click and contextmenu=right click) do not seem to fire correctly on Samsung Android phone or on iOS (iPhone and iPad). I am using a long press for rightclick, I hear a sound. On Android phone nothing apparently happens, there are no error messages in the Chrome console. On iPad Contextmenu produces an actual Google context menu, which is not the action associated with the Map Event. As I say, all is well on Windows. Thanks in advance for any help, perhaps I am missing something obvious. Rambloid

Tried click and context menu on mobile and expected provided functions to fire. On Android no result, on iOS a Google context menu appeared.

EDIT: Click and context menu on mobile does not with the provided AzureMaps examples either, so it is not just happening in my web page. E.g. Add a Context Menu to the Map - Azure Maps Web SDK Samples

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