Content Browser Not Working

Opened up a new project to start making a UI for a game, went to right click in the content browser to add new UI class and he right menu does not appear, tried using the add new button and that does not work as well, every time i right click in the browser the top bar of unreal engine flashes white, anybody know a fix for this ? using engine version 4.12.5 but currently downloading 4.13.2 to see if this fixes the issue.

Thanks Sam

could you make screenshots or videos of the behavior?

fixed the issue now, downloaded the latest version of the editor to see if this fixed the issue and it didnt, so i decided to leave it and went to bed, just got back on my pc now and it seems to be working again, unknown as to why something like this would happen but it appears restarting your pc might be the fix for this issue