Unreal Engine Issues
Unreal Engine Issues
Compile error packaging QAGame with nativization on Mac
UE - Gameplay - Blueprint Runtime - Dec 13, 2016QAGame is failing to compile with Blueprint Nativization turned on ...
Set Array Elem is missing the Item checkbox when connected to an existing array variable
UE - Gameplay - Feb 8, 2017Set Array Elem is missing the Item checkbox when connected to an existing array variable that was created separately. The checkbox is present if the Set Array Elem is created off of the array variab ...
Editor Scalability Settings cannot be set per project
Tools - Dec 17, 2018Initial setup of PostProcessQuality in the Editor .ini files does not actual change the setting. The project must be opened once and then closed in order for the settings to take effect. ...
Crash on packaged game. 4.23 will not nativize a class that creates instanced properties inside itself
UE - Gameplay - Oct 1, 2019Description from the user: up to 4.23 properties nativize normally if they are written in C++ with the Instanced specifier. The discerning difference is that that there was no Blueprint Class itsel ...
Animation Curve name changes when retargeting Skeleton
UE - Anim - Rigging - Jun 25, 2020The name of Animation Curve may change when retargeting an asset that depends on AnimSequence asset to Skeleton with different order of Animation Curve. ...
MoviePipeline: Cannot add per-shot {file_format} name overrides
zComponent - Archive - 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. ...
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, ...
Missing logging or error when applying an anim instance to a skeleton that the anim instance doesn't match.
UE - Runtime - Animation - Feb 9, 2026Currently, we detect whether an anim instance is supported by the skeletal mesh and, if it isn't, unreference the instance, but we don't error or warn the user that this happened. This leads to conf ...
Cannot compile project with dedicated server in 4.8
UE - Networking - Jun 23, 2015If a project has built a dedicated server executable then it will fail when trying to convert the project from 4.7.6 to 4.8. EDIT: Following the steps on the wiki page for Dedicated Servers () in 4 ...