In most cases, the Mod Kit is ; it is just working extremely hard. Check Task Manager : Press Ctrl + Shift + Esc .
: If "HelloNeighbor" or "UE4 Editor" is using high CPU (often 90–100%), it is still working.
If you have waited for several hours and the kit is still stuck, your shader cache might be corrupted. hello neighbor mod kit stuck at 45
: Briefly turn off your Windows Firewall to see if the loading bar advances.
: The editor will re-create these files. Note that it will still sit at 45% during the new compilation, but this time it should eventually pass. Solution 3: Firewall and Admin Permissions In most cases, the Mod Kit is ;
Hello Neighbor Mod Kit Stuck at 45%: Causes and Solutions Getting stuck at while loading the Hello Neighbor Mod Kit is one of the most common issues developers face when using the Unreal Engine-based toolkit. This specific percentage is the "gatekeeper" moment where the editor transitions from loading core files to compiling complex assets. Why Does It Freeze at Exactly 45%?
: Ironically, running as an Administrator can sometimes prevent the "ShaderCompiler" from launching correctly because only the main engine has elevated rights. Try launching the .exe normally. Solution 4: Hardware and Driver Checks If you have waited for several hours and
: Interacting with the window while it is loading can cause Windows to report it as "Not Responding," which may lead you to force-quit a healthy process. Solution 2: Clear the Derived Data Cache (DDC)
: Navigate to your Mod Kit installation directory or your local AppData folder ( %LOCALAPPDATA%\UnrealEngine ).
: Shaders are scripts that tell the GPU how to draw the world. The first time you launch the kit, thousands of these must be translated into a language your graphics card understands.