Can not setValue to EditBox on my excel 2016 ?

[sureshmanik]

I have couple of editbox as a ribbon tab ( COM add-In) in my excel application. I am trying to navigate to that tab and trying to setvalue to the first edit box.
window.getControlByClassName("MyAddinTab", "NetUIRibbonTab").getElement().setFocus(); - This works and this opens up the editboxes in that tab.
window.getEditBox(1).getElement().setFocus(); - This works and set the focus on this edit box
window.getEditBox(1).setValue("Test"); - This seems to be not working. There is no automationException or PatternNotfound exception.
( I am also not able to manually enter anything on the editbox after i run my code. I had to manually click on someother menu and the go back to my add-in tab & then my editbox works. This is totally strange)
Any idea/help on how to fix this issue ? or any workarounds?

[sureshmanik]

I tried to implement this directly in C# using UI automation framework and still having same issues. I think this is a problem with excel 2016 version. I will try to downgrade it to 2014 and try again.