Unreal Engine Issues
Unreal Engine Issues
Editing an instanced variable that is nested in two other instanced variables causes a crash
UE - Gameplay - Blueprint - Jul 2, 2015If a user edits a instanced variable which is nested inside two other instanced variables in blueprint editor, a crash will occur ...
Compile error with Local Variable of a Struct that contains a Set or Map type
UE - Gameplay - Mar 7, 2017Compile error with Local Variable of a Struct that contains a Set or Map type. Standard and array variables work without issue. Non-local variables also work without issue. ...
Changes to the Navigation settings aren't saved when edited in the Static Mesh Editor
UE - AI - Mar 23, 2017Changes to the Navigation settings aren't saved when edited in the Static Mesh Editor. The values will reset back to default values when the asset is reopened. ...
Collision Profile Name variable gets reset on multiple select
UE - Simulation - Physics - Jun 20, 2017When adding a variable of collision profile name type to an actor(as editable), its value gets reset when the instance becomes a part of multiple selection. ...
Attempted to use an out of date DemoNetDriver when using DemoPlay through blueprints
UE - Networking - Oct 27, 2017Users are not able to play a Demo in PIE using the Execute Console Command node to run the demoplay command. The following warning spams the output log while the demo is still trying to open:LogWor ...
Unable to input with IME in widget component.
UE - Editor - UI Systems - Feb 12, 2020Unable to input IME text in widget component, but able to input IME text in textbox like UMG designer. It works fine until 4.21, however it wasn't able to work after 4.22. Workaround: void FSla ...
TakeRecorder does not add a track to a level sequence when niagara FX is spawned
UE - Anim - Sequencer - Mar 5, 2024In UTakeRecorderActorSource::EnsureObjectTemplateHasComponent() function, MakeUniqueObjectName() generates the same name of a component which CachedObjectTemplate for TakeRecorder has already had. T ...
Large World Coordinates appears to not work for Niagara Mesh Particles
UE - Graphics Features - Nov 28, 2024When a Niagara System is placed at around 10^8 units away from the origin, the movements of the mesh particles aren't smooth as expected, but jumpy. These particles behave as if they are using a flo ...
Anamorphic Squeeze Factor causes a blocky Depth of Field issue on AMD Hardware
UE - Graphics Features - Jul 30, 2025When using the Anamorphic Squeeze Factor on a camera on AMD RDNA3 and RDNA4 hardware, blocking artefacts may be seen depending on the extent of the blur. The peripheries of the viewport appear to be ...
Cached State Machine is re-initialized whenever cached pose is referenced
OLD - Anim - May 19, 2015This may not be an expected use of state machines, but it is becoming a showstopper for a couple of users. These user's are caching their locomotion state machine and then using a second state mach ...