Unreal Engine Issues
Unreal Engine Issues
Apex Cloth disappears when Setting Custom Time Dilation to Zero
UE - Simulation - Physics - Character - Aug 24, 2016Apex Cloth assets disappear if you set the Custom Time Dilation to 0.0. You can workaround the issue by setting the Custom Time Dilation to 1.0, and then use the 'Force Cloth Next Update Teleport a ...
Crash when changing the AnimNotifyState property after moving the AnimNotifyState range added to AnimMotage
OLD - Anim - Jul 5, 2019NotifyStateClass may be nullptr when AnimNotifyState and AnimNotify swap occur in NotifyTrack. Workaround: SAnimNotifyPanel.cpp void SAnimNotifyPanel::OnPropertyChanged(UObject* ChangedObject ...
Uncrouching a character on a physics object causes the character to penetrate the object only when physics substepping is enabled
UE - Simulation - Physics - Mar 10, 2020This does not repro when physics substepping is disabled. The sequence of events in the character uncrouch code (UCharacterMovementComponent::UnCrouch) causes the capsule to move up then increase i ...
Invalid PropertyConnectedMask in layered material instance when base material doesn't use material attributes
UE - Rendering - Architecture - Materials - Nov 20, 2024When UMaterialInstanceConstant::UpdateCachedData() updates CachedExpressionData.PropertyConnectedMask for material instances with layers incorrectly, it can lead to various graphical issues includin ...
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 ...
Creating a code project named Test will fail the initial compile and every hot reload in Binary
UE - Foundation - Build - Farm - Jul 21, 2016When a C++ project is named Test on a Binary version of the editor, the project will fail to compile. I'm assuming this is from the editor seeing a precompiled header from another file in the engine ...
Descriptions in Material delay before displaying
UE - Rendering - Architecture - Materials - Apr 27, 2017Descriptions in the Material Editor delay before displaying. After pressing Enter after typing in a description, the description does not appear. There are several ways to get the description to app ...
Location Transform Not Applied to Animation in PIE
OLD - Anim - Jan 22, 2018-Changing the location transform using Additive Layer Tracks is not visible when PIE and instead only visible in the Animation Preview. This only occurs when keying the location but not with scale ...
Chinese translation is incorrect in some situations in the Editor
UE - Editor - UI Systems - Localization - Apr 23, 2019A user has reported that the Chinese localization of some editor elements are not correct. They mentioned that there are some words that are used that may be an appropriate replacement in some situa ...
D3D12RHI crash when interacting with UI using dx12 with raytracing enabled
UE - Graphics Features - Feb 12, 2020Enabling raytracing and DirectX12 results in D3D12RHI crash when interacting with the UI or console inside of the editor. User is using the latest drivers and has adequate hardware to run raytraci ...