During SIE (simulate) and ejected-PIE, modifying a map actor causes triggers RerunConstructionScript() which discards all runtime modifications to SCS components

UE - Gameplay - Blueprint Runtime - Sep 6, 2024

When Simulating, or Playing-In-Editor and ejected, modifying an actor in the editor world causes the SIE/PIE runtime actor to recreate its blueprint added components via AActor::RerunConstructionScr ...

Actor blueprint 'bOptimizeBPComponentData' breaks subobject instantiation for runtime spawned actors in cooked builds

UE - Gameplay - Blueprint Runtime - Aug 29, 2024

A user has reported that when an actor blueprint enables Generate Optimized Component Blueprint Data, default instanced objects of components are not properly duplicated in cooked builds. This resul ...

Instanced EditInlineNew objects are parented to the CDO when used by a child BP of a parent BP that inherits from a native class

UE - Gameplay - Blueprint Runtime - Mar 21, 2024

EditInlineNew objects added to Instanced array stored in a struct are seemingly ignored and the object is instead parented to the CDO of the owner. The owner must be the BP child of a parent BP tha ...

PIE crash on infinite loop in a BP construction script

UE - Gameplay - Blueprint Runtime - Oct 19, 2023

From the [Link Removed]: We had an issue where PIE was being stopped due to an "infinite loop" being detected in one of the blueprints construction script. This was also crashing the editor as the ...

Setting a Sound Wave variable by the drop down menu of a Macro results in a missing properties error for Duration

UE - Gameplay - Blueprint Runtime - Sep 20, 2023

This is not a regression. Tested in //UE5/Release-5.2 CL26001984 When using the drop down to select a sound wave asset as an input for a Macro then getting the duration of the sound wave within the ...

Blueprint debugger: variable getter node displays wrong object's value

UE - Gameplay - Blueprint Runtime - Jul 28, 2023

After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...

Using a TSet in Blueprint directly into a function call crashes

UE - Gameplay - Blueprint Runtime - Nov 16, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

Enum to string conversion has different results in PIE vs Cooked builds

UE - Gameplay - Blueprint Runtime - Aug 17, 2021

This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...

Persistent Local Booleans do not serialize with CPF_SaveGame

UE - Gameplay - Blueprint Runtime - Nov 30, 2020

A persistent local boolean will not serialize even though it is marked with CPF_SaveGame, when other types will (such as an integer).  [Image Removed] [Image Removed] ...

Default values specified for local BP variables of type DateTime and Timespan don't actually work

UE - Gameplay - Blueprint Runtime - Nov 6, 2020

Have attached examples of this in action, including breakpoints showing the FDateTime::Ticks count as zero. Also showed that this is an issue for the existing GetYear/GetMonth/GetDay methods (and an ...