Unreal Engine Issues
Unreal Engine Issues
Solidworks exporter installation does not proceed
UE - Editor - Content Pipeline - Datasmith - Exporters - Dec 9, 20213 users reported the same issue. DEBUG: Error 2203: Database: 1031. Cannot open database file. System error -2147287038 or DEBUG: Error 2203: Database: 1036. Cannot open database file. System err ...
Changes to Instanced Properties default value on BP not propagated to placed actors in the opened level
UE - Foundation - May 15, 2025In UE versions 5.4 and onwards (as of CL 42589677 in Main), when an Instanced UObject property is defined in an Actor Blueprint, modifying the default value in the Blueprint does not propagate the c ...
Revision Control > View Changes: Request for changes to Revert File and Unsaved options
UE - Editor - Workflow Systems - Sep 22, 20251. Objects in the Unsaved list cannot be discarded, only saved. The only options to discard changes are restarting UE or manually locating each resource and clicking Reload. This becomes extremely c ...
Package fails after adding DesktopPlatform to public module dependency list
UE - Foundation - Core - Apr 6, 2017Adding DesktopPlatform to the PublicDependencyModuleNames.AddRange() section of the Project.Build.cs file causes the project to fail packaging with the following error (full package logs in callstac ...
Crash on checking event track key property after setting static mesh reference element
UE - Anim - Sequencer - Oct 19, 2017Event track key with a structure containing staticmesh reference. Setting the staticmesh then reopening the property crashed the editor. ...
UPrimitiveComponent mouse events when underneath Slate widgets not correct
UE - Editor - UI Systems - Slate - Jan 7, 2016Licensee is adding a widget to the viewport overlay via AddViewportWidgetContent(). The widget receives mouse input when hovered. They return unhandled from all their widget's onmouse functions and ...
Mesh reduction modules selection aren't properly applied on engine restart
UE - World Creation - Worldbuilding Tools - May 4, 2023Recent changes in the MeshReductionManagerModule::StartupModule() have introduced issues where it won't respect what reduction modules have been set in the config file. This is a big issue for plugi ...
can not load all actors when load level with ULevel::LoadAllExternalObjectsTag
UE - World Creation - Worldbuilding Tools - Jun 25, 2024the udn link:https://udn.unrealengine.com/s/question/0D5QP00000OxDLH0A3/%E9%80%9A%E8%BF%87%E4%BB%A3%E7%A0%81%E6%88%96%E8%80%85%E8%93%9D%E5%9B%BE%E8%8A%82%E7%82%B9%E5%A4%8D%E5%88%B6%E5%85%B3%E5%8D% ...
Character unnecessary step down during PHYS_Flying mode
UE - Gameplay - Player Movement - Jan 15, 2026When MovementMode is set to PHYS_Flying, the character may unexpectedly step down by MaxStepHeight when colliding with a wall near a ceiling. This occurs because UCharacterMovementComponent::StepUp ...
[CrashReport] UE4Editor_Landscape!ALandscapeProxy::PostEditChangeProperty() [landscapeedit.cpp:3692]
UE - LD & Modeling - Terrain - Landscape - Jul 19, 2017This is a common crash affecting users in 4.16. Unfortunately they have not provided any additional details. Source Context 3684 // Remove null layer infos 3685 EditorLayerSettings ...