Unreal Engine Issues

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.  ...

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 ...

Ensure occurs when turning on Constraints in Advanced Show Flags

An ensure occurs when Constraints are toggled on in the show options. Note After the ensure, you can toggle Constraints off and on freely This is a Regression from 4.14.3 ...

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 ...

Some components duplicated by Sequence Recorder

Some components duplicated by Sequence Recorder Regression: YES Worked: 3249277 (4.14.3) Broken: 3299760 (4.15.0) ...

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. ...

Deadlock in FXAudio2Device::UpdateAudioClock() whenever a KVM is used to switch to another input

I have 3 machines with one set of keyboard, mouse, and monitors. Switching between machines is required during long running tasks such as cooking. ignore-Switch ...