Unreal Engine Issues

Can't inherit from ALight without a linker error

This is a regression from 5.3. It should be possible to inherit from ALight outside of the engine module without any sort of errors. Case: [Link Removed] ...

Crash when double clicking on RowStruct's CurveEditor

This problem can be reproduced with UE5.3 even after applying fix [Link Removed]. We have verified this issue with UE5.1 and it is not reproduced.  ...

Editor Utility Nested in Expandable Area Causes Editor Crash

A 'user-created' widget in the body of an Expandable Area of an Editor Utility Widget causes a crash, after selecting 'Run Editor Utility Widget'. ...

Object type properties with instanced modifier in a child actor is lost when saving

[AI] BehaviorTreeEditor crash when swapping from Behavior Tree to Blackboard view.

The first time that a Behavior Tree editor window changes from the tree to the Blackboard can cause a crash if you add and remove a key from the Blackboard via a different Behavior Tree editor windo ...

[Concurrency] - Voice Steal Release Time Doesn't Work when using a Priority Based Resolution Rule

When using a Priority based Concurrency rule, the Voice Steal Release Time is ignored and ejected sounds stop abruptly. Test Notes: See attached video. Note: I've shelved the test map and assets ...

Advanced Vehicle Template FirstPerson camera position is different between C++ and Blueprint versions

The camera positions for firstperson mode in advanced vehicle template are different between the code and blueprint versions This is not a regression as it happens in 4.14.3 ...

Skeletal meshes are not simulating physics

Skeletal meshes do not simulate physics when playing in viewport. They are not affected by gravity, nor do they ragdoll. This doesn't occur in UE4/Main. This occurs with Immediate Mode Physics of ...

Bones not listed in Connected Bones dropdown

REGRESSION: Yes, does not occur in 4.15. In Persona, no bones appear in the Connected Bones dropdown. Also occurs in Main CL 3298251. ...

Crash On Launch When Using Leap Motion Character

The editor is crashing on launch when the Leap Motion plugin is enabled and a leap motion character is being used. This did not occur in 4.14.3. This is a regression. ...