Editing a blueprint from a hidden streamed level can reset all actor transforms

UE - Gameplay - Blueprint - Jul 9, 2015

When editing an actor blueprint that's inside of a hidden streamed level, the blueprint actor transform will reset to 0,0,0. There is a video that's attached to the AnswerHub post which is very use ...

FOV only Camera anim is not working as intended.

UE - Gameplay - Feb 6, 2018

FOV-track-only camera anim do not give effect to current camera. if the anim have transform track without any key, the anim works. Regression? yes. This is not reproduced in 4.13.2 launcher version ...

Planar Reflections distorted if Separate Translucency Screen Percentage less than 100%

UE - Graphics Features - Aug 19, 2020

Planar reflections with any value lower than 100 for SeparateTranslucencyScreenPercentage are skewed/distorted when moving the camera, not representing the correct image when the value is 100. ...

ISM + WPO = broken motion vectors?

UE - Graphics Features - Nov 5, 2024

Instanced Static Meshes will have incorrect velocity if a Material uses World Position Offset. Fixed WPO in a material causes significant velocity on the ISM. This was also replicated in //UE5/Rele ...

ForEachLoop does not save structure changes in the loop body

UE - Gameplay - Blueprint - Feb 2, 2015

If a ForEachLoop node is used to cycle through an Array of Structures, using the Array Element output of the Loop node to set the members of the structure does not save the changed values. Workarou ...

Camera jitter when using Crane Rig with Look At

UE - Anim - Sequencer - Jul 21, 2016

Camera jitter when using Crane Rig with a Cine Camera that is using the Look At Functionality ...

Trying to set/change an element of a fixed-size TAssetPtr array in the Editor results in a crash.

UE - Foundation - Core - Dec 9, 2016

Trying to set the value of an element of a fixed-size TAssetPtr array in the Editor results in the Editor crashing. This did not occur in 4.13. The attached callstack is from debugging the project ...

empty default value for a blueprint member variable in a custom k2node

UE - Gameplay - Blueprint - Feb 9, 2024

User is attempting to find a blueprint member variable's default value in their implementation of UK2Node::NotifyPinConnectionListChanged(). but the expected value in FBPVariableDescription is empty ...

Adding new elements to an array in code does not update in a class based blueprint on compile

UE - Gameplay - Blueprint - May 5, 2015

When adding elements to an array inside a code class, blueprint instances of the class do not have their array updated after a hot reload. ...

Collision outcome is different between PIE and Mobile Preview/Packaged Project.

UE - Simulation - Physics - Mar 25, 2015

When playing the user's project in editor vs Packaged, there has been different results for the enemies collision. When playing in PIE, you are able to fly through the enemies with no issues. When p ...