Unreal Engine Issues
Unreal Engine Issues
Network profiler crash
UE - Networking - Aug 6, 2020Running with the -networkprofiler command line argument can crash the server on the first engine tick in FNetworkProfiler::TrackFrameBegin because the file writer archive hasn't been created yet. ...
UBT relies on a stale Multitouch framework location
UE - Platform - Apple - Aug 10, 2020UBT complains about not being able to locate Multitouch.framework ...
fbx attribute curve import do not support correctly tangent at the start end end of the curve
UE - Editor - Content Pipeline - Import and Export - Sep 2, 2020We are not reading all the key flags and we do not import correctly start key and end key tangent. I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket ...
Duplicate level collections not being respected by UGameEngine::NetworkRemapPath
UE - Networking - Jan 5, 2021When NetworkRemapPath was refactored in 4.26 to support replay connections via the rep graph, the check for duplicate level id on the driver was lost in the new code path. This causes the demo driv ...
Combobox navigation does not work consistently
UE - Editor - UI Systems - Jan 22, 2021Navigation on combo box widgets will sometimes fail until the combo box close button is pressed, despite it not being open. This appears to be related to accessibility features added in CL# 13258546 ...
ProceduralMeshComponent only supports 4 out of the possible 8 UV channels
UE - Graphics Features - Feb 4, 2021Licensee reports that Procedural Mesh Component is apparently limited to 4 UV channels, which indeed appears to be the case (e.g. UProceduralMeshComponent::CreateMeshSection arbitrarily processing 4 ...
SWidget: Add support for ScrollBox in GlobalInvalidation mode
UE - Editor - UI Systems - Slate - Sep 1, 2020SScrollBar SScrollBarTrack SScrollBorder SScrollBox ...
Update warning in FActiveGameplayEffectsContainer::ApplyModToAttribute to consider batching
UE - Gameplay - Gameplay Ability System - Feb 19, 2021The ModcallbackData won't be consumed while applying stacked Gameplay Effects if the updates are being batched. This triggers a false warning in FActiveGameplayEffectsContainer::ApplyModToAttribute. ...
Problems in skeletal mesh merge
There are a few issues a licensee has found with the skeletal mesh merge operation. See the UDN for more details and the proposed fixes. Note, the issue with the cloth merge is already logged in a ...
USD - Groom bound to GeometryCache is unstable
UE - Editor - Content Pipeline - USD - Aug 10, 2021This issue seems to occur only in 4.27 with DX12. Did not repro in 4.27 with -dx11, nor in UE5 DX11/DX12. ...