hi @FreshBeezy ,
The problems you described are most likely the Graphics controller and the procedure will possibly fix the problem.
Firstly try the Epic Support article
How do I force Fortnite to use DirectX 11? - Fortnite Support (epicgames.com)
Then try this
[Solved] How to fix Fatal Errors in UEFN related to Graphic Cards and Shaders and Derived Data problems
This is set up in a Windows ShortCut
This is highly technical but it usually fixes the problem
This has been rewritten for UEFN (Unreal Engine Fortnite), which is based on UE 5.5
You need to change the Base system on start-up
Go into Windows File Explorer copy and paste the path
C:\Program Files\Epic Games\Fortnite\Engine\Config
Click on to Highlight “BaseEngine.ini”. Right Click “Open with” select Notepad
Control+F find “WindowsTargetSettings” at line 2840
[/Script/WindowsTargetPlatform.WindowsTargetSettings]
+D3D12TargetedShaderFormats=PCD3D_SM5
+D3D11TargetedShaderFormats=PCD3D_SM5
bEnableDistanceFields=true
bEnableRayTracing=true
bTarget32Bit=false
Add the line at the beginning
DefaultGraphicsRHI=DefaultGraphicsRHI_DX11
so this section looks like
[/Script/WindowsTargetPlatform.WindowsTargetSettings]
DefaultGraphicsRHI=DefaultGraphicsRHI_DX11
+D3D12TargetedShaderFormats=PCD3D_SM5
+D3D11TargetedShaderFormats=PCD3D_SM5
bEnableDistanceFields=true
bEnableRayTracing=true
bTarget32Bit=false
Type Control + s. Save the file by closing Notepad and restarting UEFN Editor.
Your system now uses DefaultGraphicsRHI_DX11
If you like using the Windows Command shell use the command to pen the file
notepad C:\Program Files\Epic Games\Fortnite\Engine\Config\BaseEngine.ini