Buttons/ fields disappear when trying to click on them

I am new to UiPath and I have a problem with the acitivity “For Each Excel Row”. Whenever I want to select a row for “In range” I first click on the “+” button, then hovering over the “Excel” button until the three following buttons appear: “Sheet1 [Sheet]”, “Indicate in Excel” and “Custom Input”. But whenever I want to select one of these three buttons, they disappear immediately. They will only be shown again when I go on top of the “Excel” button. Because of this I can’t select any rows in an Excel-file.

I tried it on my laptop and it works, but not on my computer. I tried reinstalling UiPath and also the Excel UiPath-AddIn but nothing seems to work. The three buttons always disappear before I can click any of them. Somebody can help me? Thanks!

@kaibaehler
kindly share some screenshots.

Also, try Right click to show some options then try to select the button. It may be working.