Hello Epic Games. Before the new Fortnite update, I was using the Unreal Editor with ease and smoothness. After the update, when I click on the Unreal Editor, a message appears stating that a Level 5 graphics card is required to run the editor. AvailableFeatureLevel = ES3_1, ShaderPlatform = PCD3D_ES31
Hello, Welcome to the Forums.
There is at least one other person that this has begun happening to as well.
Please post in that thread with your CPU and if you are using the CPUs integrated graphics, or if you have a discreet graphics card.
Also give the -d3d11 troubleshooting step a try.