Howdy ryani,
Thank you for reporting this issue. I am just going to need a bit more information before i begin digging into this issue. Would you be able to clarify which version of UE4 you are currently using when you are seeing this error? Also, above you say that the scene looks like this is most default projects. Would you be able to list which project(s) you are mostly seeing this error on?
Any additional information would be greatly appreciated.
and have a great day!