Unreal Engine Issues

World Composition "Add Adjacent Landscape Level" doesn't work correctly with landscapes that were created in the landscape editor (outside of world composition)

World Initialization is performed on Transition World if the client's process is halted at a certain point

A user reported an issue where, if a client hitches during world transition, the client will continue referring to the transition world instead of the newly created one. This will result in the clie ...

Cannot move instances of a hierarchical static mesh component in the blueprint editor viewport

Can move individual mesh instances of a regular instanced mesh component in the blueprint editor, but not hierarchical ones. Originally reported as a pull request in [Link Removed], but we rejected ...

Camera Rotation Not Working With Mouse if Mouse Cursor is Shown

When the mouse cursor is shown, and you press eject in the viewport, you can no longer rotate the camera while holding right click and moving the mouse. If you hide the mouse cursor using the Show ...

Garbage Collection Causing Noticeable Hitches

Garbage Collection is causing noticeable hitches on whatever interval it is run on. This is noticeable in the UE4 Profiler, as you will see a spike every X amount of seconds, depending on how often ...

Particle Ribbons not firing off consistently

Ribbon trails do not immediately follow the lead particle when fired. There is an inconsistent delay in some that cause them to either not fire or fire mid stream. This did not occur in 4.10.4, bu ...

Delta applied twice when moving parent and grouped child actors

When some grouped actors are childed to another actor, and both the group and the parent are selected in the world outliner, movement delta is applied twice to the grouped children. Code for a poten ...

Vive: Exiting VRPreview / VREditor mode can cause last stereo image to freeze in HMD

This seems to only happen when the editor has focus after closing VRPreview / VR-Editor. If you alt-tab have focus on another program it goes to SteamVR waiting room. ...

Problems rendering higher resolution than 1080p from matinee with "Use Separate Process"

Problems rendering higher resolution than 1080p from matinee with "Use Separate Process". Seems to render only part of the frame and is stretched. This is a regression from 4.10. [Image Removed] ...

[CrashReport] UE4Editor_Core!FText::IsEmpty() [text.cpp:230]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Index >= 0 [Link Removed] [Line: 401] Source Context: 215 ...