Unreal Engine Issues
Unreal Engine Issues
Previewing Node in Material Editor Produces Unexpected Output with DX12
UE - Graphics Features - May 16, 2018Per Licensee: Since we switched to DX12 we started to see strange behavior in material previews. I was able to reproduce the problem in UE 4.19 vanilla as well. We usually have to force recompilin ...
Behavior of NewBinding and ExistingBinding are different inside Shot track
UE - Anim - Sequencer - Jul 6, 2018When using NewBinding, the bind does not work properly with the level sequence specified by ShotTrack. The cause is that Guid of ExistingBindingID will be empty when passing through ActorPicked in ...
Set Range Animations imported from 60Hz frametime is halved
Tools - Aug 3, 2018Reported by a licensee on UDN, this bug is fallout from the fix made for the following Jira:[Link Removed] - Fbx importer: animation range import is broken when importing 60Hz anim The attached ass ...
Rare assertion comes up when cooking if sequencer camera track has only additive transform track
UE - Anim - Sequencer - Mar 2, 2020If a camera track has only additive transform track, some functions return uninitialized F3DTransformTrackToken made by default constructor. It causes a rare assertion. Please take a look at F3DTra ...
Undo function breaks local variables in Blueprint Function after compiling
UE - Gameplay - Oct 8, 2020Blueprint functions appear to correctly associate local variables when renaming the function. However when undoing a rename with ctrl-z the local variables appear to lose their association. Redoing ...
Widget Blueprint breakpoints hit during a Tick event do not engage the debugger.
UE - Editor - UI Systems - Jun 13, 2024The user comment on the Salesforce issue " This is a regression from the behaviour in 5.3.X, and I've reproduced it in 5.4.0, 5.4.1, and 5.4.2. The specific issue/change that caused this regression ...
FCableSceneProxy::BuildCableMesh thrashes memory allocator
UE - Simulation - Physics - Feb 12, 2025FCableSceneProxy::BuildCableMesh in CableComponent.cpp:233 showed up as a hot spot in profiling because the two TArray allocators in SetDynamicData_RenderThread used by BuildCableMesh are created an ...
editor crashes when variable inside of a struct is set to a class type then the object is moved to a new folder
UE - Gameplay - Blueprint - Mar 17, 2015If a struct has a variable set to a class type, then the object of that class type is moved to a new folder in the editor, the struct will replace the class type with "class", which causes the edito ...
SVN plugin unable to differentiate between two working copies when using same login
Tools - Jan 3, 2017Whenever you use the same login to connect to SVN source control in the editor, the editor's SVN plugin is unable to differentiate between two working copies of the same repo. Any checkouts made in ...
OnMovieClipFinished returns the incorrect movie name
Tools - Jun 29, 2017When OnMovieClipFinished is called, it will return the name of the movie clip that is about to be played rather than the clip that had just finished. Regression: Yes This did not occur in 4.15.3 B ...