Context menu not working properly

[grahamjonesuk]

Anyone any idea why this might be happening? When I right click on something to get the context menu, it sometimes works and sometimes does not.

Here are three images showing how it appears. As you can see, there is a completely variable response as to what appears. I am using the standard Windows 10 theme in a completely fresh install (not an upgrade) on a new hard disk.

 

[rodrigolujan]

Its happening with me too :/