Hi SRP324,
Are you able to change the drop-down that shows “No Active Mode” to “Selection Mode”?
Hey there @SRP324! Welcome to the community! So following up behind Recourse’s answer. If you can’t select a selection mode, are any of the viewports here selected? If not, could you try them? I’ve seen a rendering issue before like this but the “No Active Mode” is telling us that it’s probably not a rendering issue.
Greetings @SRP324 !
I share with SupportiveEntity in welcoming you to the Unreal Engine community! 
Just so you’re aware, I’ve had to move this topic from the Feedback for Unreal Engine Team forum to the World Creation forum. I added the optional tag “level-editing” for you.
The Feedback for Unreal Engine Team forum is for suggestions on how to improve the Unreal Engine. 
But no worries!
Just remember, when posting, be sure to review the categories to ensure your topic is posted in the most relevant space.
Wishing you the best of luck! Happy Developing!
'- Your Friendly Neighborhood Moderator