Unreal Engine Issues
Unreal Engine Issues
Material re-route nodes break TextureSample output
UE - Rendering Architecture - Materials - May 4, 2017This is a bug found by a licensee ...
MoviePipeline: Cannot add per-shot {file_format} name overrides
UE - Anim - Sequencer - MRQ - Feb 3, 2022void UMoviePipelineBlueprintLibrary::ResolveFilenameFormatArguments(const FString& InFormatString, const FMoviePipelineFilenameResolveParams& InParams, FString& OutFinalPath, FMoviePipelineFormatArg ...
[MetaSounds] - Changes to Sort Order do not undo/redo as expected
UE - Audio - MetaSounds - Nov 15, 2022Changes to the sort order do not revert the order of inputs on a node when undone. It will change if the node is refreshed or the graph is saved, however. ...
A LevelSequence will lose the binding to objects contained in a level instanced inside another level
UE - World Creation - Worldbuilding Tools - Level Instances - Sep 15, 2025A LevelSequence will lose the binding to objects contained in a level instanced inside another level on 5.6 and up. Refer to the reproduction steps or the shared repro project provided by the licens ...
Values for InitialOnly replicated arrays can fail to be captured in replay when removed and re-added between checkpoints
UE - Networking - Oct 2, 2025When the first checkpoint is recorded, the correct array properties will be captured in the LifetimeChangelist. When these array items are later removed and another property on the actor is changed, ...
Input Action Events are not included in the list of overrideable functions in the My Blueprints tab
UE - Gameplay - Blueprint - Feb 5, 2016Input Action Events are not included in the list of overrideable functions in the My Blueprints tab. Reproduced in Actor Blueprints and Player Controller Blueprints. This is a regression: overridin ...
A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project
UE - Gameplay - Blueprint - Mar 1, 2015A function in a Blueprint Function Library that references another function in that library cannot be saved after closing and reopening the project. The library will save without error until the pro ...
Clear Timer node does not stop a looping timer
UE - Gameplay - Feb 16, 2015Setting a Clear Timer node does not stop the named function from firing. ...
Linux editor can fail on start due to a stale TPS library in Engine/Binaries/Linux
UE - Platform - Linux - May 21, 2015For 4.8, we moved LinuxNativeDialogs, a third-party library, to a different location (and also changed its API somewhat, so the old library is binary incompatible). However, some users apparently a ...
Color bubble has no effect in an Event Graph
UE - Gameplay - Blueprint - Feb 24, 2015If you add a comment to an Event graph Blueprint and change the comment color, the bubble should not change colors unless the Color Bubble detail is checked. I have included photos to better show ...