files/folders in content browser are not clickable

I have installed the EPIC and I notice something strange.
When I press on any folder in the Content Browser, I can not click it. I only can select it with the mouse then press Enter key to get into that folder. Moreover it happened to me that I can not press on some node such as Timeline and I can not access its properties and graphs.

I think is because there are two icons appear on the game engine i.e., a “headset and Microphone”. I don’t know which programs but I uninstalled the SKYBE and TEAMVIEWER as I thought the problem is happening because of them. that is did not resolve the problem.

Any Idea.

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I think there is no solution for the above problem. thanks