Unreal Engine Issues

Two sections can be created when MovieScene3DAttachTrack is added from Sequence Scripting

If you add a track for Attach from Sequencer Scripting and add a section to it, two sections are automatically added.If you don't use Sequencer Scripting, only one section will be added ...

Particles are only activated when the camera moves back

UParticleSystemComponent :: CanConsiderInvisible () Particles determined to be invisible by MaxSecondsBeforeInactive seem to be activated only when the camera moves back. Is this correct behavior? ...

FLowLevelMemTracker::GetTagAmountForTracker with CustomProjectTag returns 0 always

FLowLevelMemTracker::GetTagAmountForTracker with CustomProjectTag returns 0 always. Because of FLLMTracker::FLLMThreadState::GetFrameStatTotals don't amount to about CustomTags. Following code will ...

Crash when creating nested child actors

Setting the root of the furthest child actor results in a crash after pressing compile on the blueprint. Example project: [Link Removed] ...

Pasting a section always adds a row regardless if there is space for the section on the current row

Assertion failed: IsValid() in AudioDeviceManager.h related to dragging and dropping cues into the viewport

I was not able to reproduce this issue with the user given repro steps, however the crash has occurred for multiple users according to Crash Reporter, so it is worth investigating more into ...

Child blueprint classes do not inherit "ClassGroup" from their native parents

When creating a blueprint component based off of a custom native class that utilizes the ClassGroup metadata  ...

Blueprint functions with unconnected return nodes may return unexpected values

We don't clearly define the behavior for a Blueprint function when an execution path without a return node is taken. We should either report an error, or have the function return the default initial ...

The Build Nanite property is disabled after reimporting a mesh that has Build Nanite enabled

Regression no, the issue was reproduced in Windows //UE5/Release-5.0 CL 20280985 repro rate 3/3 After the user tries reimport mesh with nanite enabled from mesh editor the mesh was reimported with ...

GPU memory leak during large source control operations

We've seen some reports of GPU memory leaks during source control operations caused by the animation of the throbber widget, potentially leading to a crash if GPU memory runs out. The crash has been ...