Unreal Engine Issues

Using Start Players as Spectators checkbox does not affect Player0

When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...

Sound Mix Modifiers do not properly affect Sound Class

Sound mixers do not properly override variables within a sound class. This prevents users from being able to modify variables such as volume or pitch quickly and efficiently by using the push/pop st ...

Custom Primitive Data on BP instance not taking affect while in editor

Original Repo is from 4.27, however, it still happens in 5.2. This is happening because the Instance Data system does not update the field UPrimitiveComponent::CustomPrimitiveDataInternal from the d ...

ResavePackages Commandlet Consistently Crashes in 5.3 In Material PreSave

Running the ResavePackages commandlet will consistently result in a crash. The callstack is here: Assertion failed: !IsRooted() [Link Removed] [Line: 265] UnrealEditor_Engine!UMaterialInterface::P ...

Example 1.3: Constraint Profiles animation not working in ContentExamples

This bug does not occur in //UE5/Release-5.0-EarlyAccess or in Release-4.27 making it a regression.  This also occurs in //UE5/Main  ...

Control Rig function nodes cannot have their color changed in 5.3

VR preview Crashes for the Oculus Rift on 4.8 preview 3

If the User starts up the VR preview mode with an Oculus rift plugged in the editor will crash. ...

Spring Arm rotation only prints Yaw after 4.17 conversion

Spring Arm rotation only prints Yaw after 4.17 conversion. In 4.16 it would print the Yaw, Pitch, and Rotation as expected. The spring arm by itself prints the rotation correctly but once a camera ...

Layers render transparent in Material_Advanced 1.3 display in ContentExamples on HD4600

Only seen on an Intel HD4600 GPU This is a regression from 4.13 Did not occur on an Intel HD530 GPU ...

Paper2D: Editor hangs when assigning Sprite Atlas Group to Sprite

In UE 5.3 and later, assigning a Sprite Atlas Group to a UPaperSprite asset can cause the editor to hang and eventually crash. This behavior has been reproduced in 5.3, 5.6, and a recent UE5-main so ...