Unreal Engine Issues

FMath::TruncToInt() may result in incorrect data being returned in instances when a Double is passed in containing a large integer value

The FMath::TruncToInt() function takes a float parameter, but some calls to this function pass in a double value. For most use cases, this will probably work fine. However, if the integer values are ...

Unable to set default of elements for an array of component references through blueprints

If a user creates an array to store references to a certain type of component, the existing components will not be available to be selected when they are setting the default values of the elements. ...

Crash after generating HLODs for merged meshes that have all triangles culled

Project fails to compile if UFUNCTION parameter shares a name with a previously defined UPROPERTY variable

If the name of a UFUNCTION parameter matches the name of a previously defined UPROPERTY variable, the project will fail compile due to the following reason: Function parameter: '[Variable/Paramter ...

Compiling after placing an unconnected return node does not yield compiler results nor warnings

I noticed this while executing this in [Link Removed]. ...

Passing array from blueprint to C++ causes performance drop

Passing a blueprint array as an argument to a C++ function causes a spike in Frame rate, game and GPU. This spike is noticeable when using UnitGraph. Attached screenshots show difference in UnitGr ...

UPROPERTY specifiers are not reflected for FTransform

Defining an FTransform in code with VisibleAnywhere, BlueprintReadOnly allows the variable to still be edited per instance placed in the level. ...

Multiple simultaneous keyboard event inputs not received

User Submitted Bug Some keys are not registered when pressed with combination of others. ...

Null access to Unpossessed controller with seamless travel

The unpossessd controller will not be removed from UWorld::ControllerList unless destroyed. This causes null access to the ControllerList when GC occurs during seamless travel execution. The unposse ...

'Platform Stats' incorrectly display the number of Texture Calls for a material

When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...