Unreal Engine Issues
Unreal Engine Issues
GetStaticMeshViewport() is called without checking if it returns a valid viewport causing the Editor to crash
UE - Editor - Dec 9, 2021This is not a regression. Tested in: //UE4/Release-4.27 CL18319896 Binary //UE5/Release-5.0-EarlyAccess CL16682836 Binary //UE5/Release-5.0 CL18407655 Personal P4 When opening a static mesh without ...
udatasmith runtime import does not work properly
UE - Editor - Content Pipeline - Datasmith - Importer - Dec 9, 2021The udatasmith is created through the unofficial blender exporter that seems to still be using SDK 4.24E0 ...
Reflection result of clear coat bottom normal is not correct.
UE - Rendering Architecture - Materials - Dec 9, 2021This problem tends to appear in the southern hemisphere of spherical objects. It is not reproduced in 4.19. ...
Incorrect number of vertices displayed by ProfileGPU command in Cascade particles
UE - Niagara - Dec 9, 2021This issue was reported by the licensee, but it's possible that the number of vertices in the particles is higher than it really is. ...
Project crashes in split screen when entering water body lake
UE - Graphics Tools - Terrain - Water - Dec 8, 2021When creating a landscape with a waterbody lake. The engine will crash when in split screen when the player enters the water. This is not regression, it is occurring in 4.26. ...
AttachChildren can be incorrect on client if parent and attached actors are spawned at the same time on the server
UE - Networking - Dec 8, 2021See linked UDN for more info. It seems as though if both a parent actor and its attached actors are created at the same time on the server, then there is a chance the attached actors won't appear at ...
Using the Transform Tool to manipulate multiple Event Trigger keys at different times in the Sequencer Curve graph sometimes causes crash
UE - Anim - Sequencer - Dec 8, 2021This is not a regression. I was able to reproduce the crash in 4.26. Using the transform tool to manipulate keys for an Event Trigger within the curve editor of sequencer sometimes causes it to cra ...
Crash occurs while animating a control rigged actor in sequencer when drag selecting the actor in a orthographic view
UE - Anim - Sequencer - Dec 8, 2021This is a regression Tested in 4.27.2 Drag selecting a control rigged actor while in an orthographic view causes the editor to crash. ...
Water line misaligned if Screen Percentage is less than 100% while Temporal Upsampling is enabled
UE - Graphics Features - Dec 7, 2021Water line is misaligned if screen percentage is less than 100% while Temporal Upsampling is enabled. ...
Infinite loop in UAnimSequence::ExtractRootMotion when sampling backwards
UE - Anim - Gameplay - Dec 6, 2021When sampling root motion backwards we can hit an infinite loop in ExtractRootMotion. This happens if the initial sample time + negative delta is off the end of the animation clip. In that case FA ...