In unreal engine 5.5.4, I am attempting to make use of the Modeling Tools plugin. When I initiate modeling mode (shift + 5), the editor instantaneously and invariably crashes.
Here are the relevant lines from the log file:
[2026.03.03-14.52.59:414][325]LogStylusInput: Error: WindowsStylusInputInstance: COM Interface Error: Class not registered
[2026.03.03-14.52.59:414][325]LogStylusInput: Error: WindowsStylusInputInstance: Could not create RealTimeStylus COM object instance!
[2026.03.03-14.52.59:414][325]LogOutputDevice: Warning:Script Stack (0 frames) :
[2026.03.03-14.52.59:416][325]LogWindows: Error: appError called: Assertion failed: RealTimeStylus.IsValid() [File:D:\build++UE5\Sync\Engine\Plugins\Editor\StylusInput\Source\StylusInput\Private\Windows\WindowsStylusInputInstance.cpp] [Line: 370]
I tried disabling the stylus input plugin that seems to be the source of this error, but I can’t do that without also disabling Modeling Tools (it’s a dependency).
I have also tried this with my wacom intuos pro both plugged in & completely unplugged/powered off. I attempted many fixes including manually altering the project configs to attempt disabling the tablet plugin (no effect) and disabling/reinstalling all the tablet services on Windows. None of these changes had any effect on the crash. Is there any way to fix or bypass this so I can use modeling mode?