Thank you for the additional information and screencast. Indeed, the keyboard is not shown after initial item selection. Unfortunately, we are out of idea why the browser decides to not show the keyboard on subsequent focus.
The widget does not do any special in that case and no of the wired events or applied attributes (we removed them) should control the virtual keyboard behavior.
The widget works just fine with newer Windows10 and my assumption is that the behavior is a limitation with the used current version. I am afraid that we cannot do much in this case. What I would suggest you is to use newer version of Windows.
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