Unreal Engine Issues

Using a custom #define as the condition for a UFUNCTION's declaration will cause the function to not show in blueprints

Using a custom #define as the coniditon for an #if / #endif that encapsulates a UFUNCTION that is marked as BlueprintCallable will prevent it from being visible in blueprints despite the #if resolvi ...

FBX Scene Importer sets actors in Blueprint to movable when reimporting

When using the FBX Scene Import into Level with default settings so that the actors in the BP import as static, if you reimport them they will then be set to Movable in the BP. This is not a regre ...

With Pause Event on frame 0, sequence will never be able to resume playing

With Pause Event on frame 0, sequence will never be able to resume playing. It appears to trigger the event again. ...

NiagaraEmitter using Grid 3D Template of NiagaraFluid plugin at coordinates greater than about 10.5 km is not displayed

Object type properties with instanced modifier in a child actor is lost when saving

Having two Play Persistent Audio modules in Niagara will only play the first sound

Only one Play Persistent Audio module will work at a time in a Niagara emitter. ...

Enhanced Input does not fire a "Cancelled" event for mappings that were in progress, but removed during a key-rebuild

If the return value of a trigger goes from ETriggerState::Ongoing to ETtriggerState::None, without returning a ETriggerState::Triggered, then there should be a "cancelled" event that is fired when E ...

'Max World Position Offset Displacement' causes culling issue on HISMC/foliage in 5.4

Foliage/hierarchical instanced static mesh components have issues with culling when their material's "Max World Position Offset Displacement" value is a higher amount, e.g. 100.0. ...

Add Code to Project fails to add a class to the project

Add Code to Project fails to add a class to the project. The project can't be reopened until the classes are manually removed and the project is recompiled. The following errors occur when using Add ...

Audio Persists and App becomes Unresponsive when Opening Map and Calling Movies to Load

A licensee is experiencing odd behavior when using custom code to call a loading movie when opening/loading a level. The licensee has implemented a loading movie to play when calling a map to open ...