When a client sends an Unreliable RPC to the Server in same frame with a Reliable RPC, Unreliable RPCs are Reliable

UE - Networking - Sep 25, 2018

When a client sends an Unreliable RPC to the Server in same frame with a Reliable RPC, Unreliable RPCs are Reliable. It implies extremely high lag on each lost RPC and all following ones. User lose ...

Debug lines can be obscured by post processing effects

UE - Graphics Features - Sep 14, 2015

Debug lines (Results of DrawDebugLine()) can be obscured by post processing effects such as a strong glare. Debug lines should be always visible for debugging purposes. ...

Use Per Property Manually Overridden Texture Sizes when Merging Materials generating HLODs only creates 1024 Texture Sizes

UE - World Creation - Worldbuilding Tools - HLOD - May 3, 2017

Texture sizes incorrect and always output 1k resolution textures when creating HLOD proxy meshes and using the per property manual override for texture sizes. I have attached a screenshot which exh ...

Nested components do not appear in proper order in viewport instances

UE - Gameplay - Blueprint - Nov 22, 2017

When an actor contains a nested component (components declared inside another component class), the hierarchy for the actor blueprint does not match the hierarchy of a placed instance of the actor ...

Integer Blueprint variables reset the Bitmask Enum setting when the Editor closes

UE - Framework - Blueprint - Feb 28, 2019

User created Bitmask flag Enumerators are not correctly stored and retrieved from Blueprint Integer variable settings. When the Editor is restarted the value of the Integer's Bitmask Enum is set to ...

Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings

UE - Graphics Features - Apr 7, 2015

Atmospheric Fog cannot be toggled to hidden in the Scene Capture 2D's detail settings. All other setting will toggle correctly. ...

Different Number of Frames imported from the same FBX between UE 4.8 and 4.9

OLD - Anim - Sep 14, 2015

Using the same import settings in UE4.8 and UE4.9 will result in a different number of frames of an animation being imported from the same FBX file. If you import the same fbx animation which in M ...

Compatible skeletons not visible when "Show Only Compatible Skeletons" is Selected in Retarget Window

OLD - Anim - Aug 19, 2015

When you right click on a Skeleton and select "Retarget to another Skeleton," in the subsequent "Select Skeleton" pop up Window, compatible skeletons are not visible when "Show Only Compatible Skele ...

Engine build fails in Visual Studio 2017 if Visual Studio 2013 is also installed on the same computer

UE - Foundation - Build - Farm - Mar 21, 2017

Attempting to build the Engine using Visual Studio 2017 will fail if Visual Studio 2013 is also installed on the same computer. If Visual Studio 2013 is uninstalled, or if the computer has Visual St ...

Replace references doesn't prompt to save dirtied assets that hold a soft reference to the deleted asset

UE - Gameplay - Dec 21, 2017

When deleting an asset any other asset that holds a soft reference to the deleted item will appear in the reference list. For a soft reference when choosing to replace the references with another as ...