Unreal Engine Issues
Unreal Engine Issues
Material Particle SubUV Sample does not work with Tex Object
UE - Rendering - Architecture - Materials - Aug 29, 2025The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. ...
Compatible Skeleton Animation does not retarget the same on duplicate skeleton
UE - Anim - Rigging - Retargeting - Jan 29, 2026If a mesh is exported from the engine, reimported as a new skeleton and mesh, and then marked as a compatible skeleton. Animation will have slightly different rotations playing on the skeleton. ...
Cook Warning "Saving FText which has been initialized from FString" when a user-defined BP structure contains a native C++ struct with an FText
UE - Framework - Blueprint - Sep 23, 2025Consider a C++ struct containing an FText. Now consider a used-defined BP structure containing that C++ struct. When cooking an asset that references such a user-defined BP structure, the following ...
JsonObjectToUStruct removes _ClassName from input FJsonObject, breaking repeated deserialization
UE - Foundation - Mar 18, 2026FJsonObjectConverter::JsonObjectToUStruct removes _ClassName from nested JSON objects during deserialization. Removing Obj->RemoveField(ObjectClassNameKey) from ConvertScalarJsonValueToFPropertyWit ...
When typing Korean in Slate using FTextInputMethodContext, characters outside a specific range are not entered
UE - Editor - UI Systems - Slate - Apr 7, 2026Descriptions After getting the below message LogTextStoreACP: Verbose: GetTextExt - From 33 to 34 A line break past that range is inserted. However, when typing Korean, the correct range is not s ...
Lock Actor Movement doesn't prohibit rotating an object by turning the viewport while piloting it.
Tools - Jun 12, 2015If you pilot an object and wish for it not be moved, such as a camera, you can use the Lock Actor Movement option. This will stop the object from moving, but it will not stop the object from being r ...
Log Text, Log Location, and Log Box Shape, do not appear in Blueprint Visual Logger or Output Log
UE - AI - Jan 24, 2016Debug information from blueprint visual loggers (log text, loglocation, logboxshape) do not print to either the message log or output log. This can be problematic as the visual debugger specifically ...
Flickering windows with four player PIE on Laptop Geforce cards
UE - Graphics Features - Oct 1, 2015Flickering windows with four player PIE on Laptop (mobile) Geforce cards. See attached video, or video link from the answerhub thread. It happens repeatedly and very frequently. ...
Objects do not Scale relative to their Temporary Pivot Point (Alt+MMB Click)
Tools - Mar 19, 2015After temporarily moving the pivot point (Alt+Middle Mouse Click on the center of the translate tool), you can switch to scale. However, the object still scales from it's original (permanent) pivot ...
Input Bindings losing rename information after re-opening project
If an input binding is renamed and the editor closed and re-opened, the input binding will revert to it's original name. ...