Unreal Engine Issues
Unreal Engine Issues
Dragging to the content browser from an open import selection window will cause an assertion crash
UE - Editor - Content Pipeline - Import and Export - Jun 21, 2016Using a very specific way of importing an FBX will cause a crash assertion that closes the editor without opening crash reporter. Essentially when using the import button in the content browser and ...
[CrashReport] UE4Editor_Engine!UBlendSpaceBase::UpdatePreviewBasePose() [blendspacebase.cpp:1220]
OLD - Anim - May 11, 2017This crash has been logged due to high frequency among our users. I have tested in 4.15.2 based on the user comments below, but have been unable to reproduce this issue. In my attempts the Blendspa ...
Traveling away from, then back to the original map in multi-process PIE with the editor as a client causes an assert
UE - Networking - Mar 28, 2016An assert is triggered in this case because in multi-process PIE, if the editor is a client, the PIEInstance of the world context remains at -1 (see UEditorEngine::PlayInEditor). If this client inst ...
HMD Mirror Mode causes vive to have black preview screen
UE - Platform - XR - Jun 23, 2016[NickW] SteamVR uses HMD Mirror, but this should fail more gracefully Not sure if this is supported for vive, but it puts the user in a state where they can't undo the command (or change back to a ...
skeletal mesh cannot use async scene
UE - Simulation - Physics - Dec 15, 2016Since the option to use Async Scene with Mesh and CapsuleComponent appears under "Physics" in the Details Panel of a skeletal mesh, the ability to select these options is expected. Currently both bo ...
Datasmith re-import crash - UE4Editor-UnrealEd!UMaterialInstanceConstantFactoryNew::FactoryCreateNew
UE - Editor - Content Pipeline - Datasmith - Exporters - Feb 13, 2019From user:I'm getting repeatable crashes on re-imports after I've re-worked the models a bit in Max. The workaround now is to just delete everything from Unreal and do a fresh import, but as my o ...
Desktop Editor does not transition into VR Mode when Oculus HMD is worn while 'Enable VR Mode Auto-Entry'=True
UE - Platform - XR - Jul 29, 2017Desktop Editor does not transition into VR Mode when the Oculus HMD is worn. The user must manually enter VR Mode using Toolbar buttons / keyboard shortcuts. This issue is only observed when on Ocul ...
UIScaleCurve float-point value in BaseEngine.ini lacks precision
UE - Editor - UI Systems - Slate - Jun 4, 2020The screenshots below display 1920x1080pixel widget button. First one with Default DPIScaleCurve shows extra borders on the right and bottom. Next one with more precision shows no extra boundary. [ ...
Cook failure when World Partition maps have level instances using level blueprints
UE - World Creation - Worldbuilding Tools - Level Instances - Mar 14, 2022The following cook error results from attempting to package a WP map that has level instances using level BPs: LogCook: Error: PackageSplitter found the Generator package still in memory after it ...
Possible memory leak in FVertexFactoryData's ClothVertexFactories
UE - Simulation - Physics - Character - Oct 28, 2015Developer implemented their own marker system with callstack data in their own custom version of malloc/realloc/free, and they reported that there might be a memory leak in the ClothVertexFactories ...