Unreal Engine Issues

Client is unable to Server Travel with the host when Seamless Travel is disabled

Client is unable to Server Travel with the host when Seamless Travel is disabled. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the client is able to join in, it is a regress ...

Ensure tripped: "Template Mismatch during attachment."

Enabling Collision on a Spline Mesh component with a Static Mesh assigned causes an assertion to fail while executing in a package

Enabling Collision on a Spline Mesh component with a Static Mesh assigned causes an assertion to fail while executing in a package. This does NOT occur if you play in editor. Repro Rate: 4/4 Teste ...

Get Constraint Force node always returns a magnitude zero vector

Get Constraint Force node always returns a magnitude zero vector. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and was able to get the constraint force, it is a regression. ...

[Source Effect Chain][Blueprint] -Add Source Effect To Preset Chain Has No Effect

Add Sound Effect to Preset Chain has no effect on the Source Effect Chain. [Link Removed] ...

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...

State Tree needs to be compiled again after reopening the Project

It seems upon reopening a project with State Trees, they don't always keep their last compiled state or recompile when the project is loading up. Same issue occurred when I removed a Task from a Sta ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

Rarely, unmodified Niagara will cause diffs and bloat the patch.

Attached is a project that picks up Niagara from the content sample. The probability of reproduction is about 1/10. The simpler the project, the lower the reproduction probability. I am attaching ...

Add Actor World Offset does not work consistently with physics-enabled objects

Add Actor World Offset does not work consistently with physics-enabled objects Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did not occur there, it is a regression ...