Unreal Engine Issues
Unreal Engine Issues
Reference Viewer doesn't show references to Primary Asset IDs
UE - Editor - Applied Usability - May 13, 2025Context Reference Viewer can be used to view references between assets. There is a setting 'Show Management References' whose tooltip implies that references via PrimaryAssetID should be findable t ...
The visibility state of on-screen stat messages is not restored correctly after entering and leaving PIE. This also affects other important on-screen messages like map warnings and debug messages.
UE - Editor - UI Systems - Nov 28, 2024Currently, the ShowStats viewport option is automatically enabled when entering PIE and automatically disabled when exiting PIE. This forced disabling happens even if the option was enabled prior to ...
SpringArmComponent with "Use Camera Lag Substepping" does not handle fluctuating frame rates correctly
UE - Gameplay - Jun 4, 2024The description of SpringArmComponent's "Use Camera Lag Substepping" option says "sub-step camera damping so that it handles fluctuating frame rates well". However, as noted and explained by a licen ...
USplineComponent still editable in viewport despite setting as "read-only".
UE - Framework - Blueprint Editor - Apr 29, 2024A spline component continues to be visible and editable in-editor despite all attempts to disable the functionality through the component's settings or uproperty specifiers. ...
In-editor hitch when deleting one actor in a world with many loaded actors
UE - CoreTech - Nov 17, 2023When editing a level with many actors (1000+), deleting an actor results in a noticeable hitch: the editor becomes unresponsive for seconds. This hitch becomes longer the more actors are loaded and ...
FKismetCompilerUtilities::ValidateProperEndExecutionPath() was unintentionally removed from compile-time graph validation
UE - Gameplay - Blueprint Compiler - Oct 16, 2023We no longer include a note/warning when an expected execution path will not be taken in a function graph due to the presence of a return node. This was inadvertently removed by the change that intr ...
Cannot change collision presets in BP instances.
UE - Simulation - Physics - Aug 8, 2023Even with the “Editable when Inherited” flag set in the blueprint class static mesh component, the BP instance collision preset cannot be set to one different from the BP class collision preset. The ...
The pak file specified in PakFileRules is not created correctly
UE - CoreTech - Aug 8, 2023The rules by which chunks are created are ambiguous and currently do not ensure that both PakFileRules and PrimaryAssetLabel settings are reflected. In this sample, depending on the PrimaryAssetLabe ...
BP property initialization fast path does not handle non-instanced properties assigned to default subobjects correctly
UE - Framework - Blueprint - Jul 27, 2023Non-instanced object ref properties are incorrectly being skipped at property initialization time when Blueprint class instances are spawned with the fast property initialization path enabled. This ...
NiagaraComponent attached to the character won't stay active when travelling to a new level using seamless travel
UE - Niagara - Jul 27, 2023The pawn character is added to APlayerController::GetSeamlessTravelActorList, so it'll be persisted during server travel. The Niagara component is spawned during BeginPlay and activated manually. W ...