Unreal Engine Issues

Crash when deleting BindingOverrides if the target property is left open on the details panel

Crash if opening ALevelSequenceActor::BindingOverrides in the details panel and run a process that empties the BindingOverrides elements. Workaround: FMovieSceneObjectBindingID FMovieSceneObjectBi ...

Vector VM - Crash / memory stomp when using > 255 external function calls

The Vector VM has only every supported a byte's worth of external function calls, when we blew the limit it would index into the incorrect VM call. The new VM will also overwrite memory when exceed ...

Toggling Vertex Colors on in Static Mesh Editor makes the viewport all white

When turning on the Vertex Color option in the static mesh editor, the whole viewport turns white. ...

Lighting channels are not supported with tiled lighting

Reported via UDN ...

Landscape Paint Layers will not scroll to the end when using mouse wheel

In a normal detail panel, each element has its own SDetailSingleItemRow and are mostly uniformly sized with some exceptions of having a few bigger rows (i.e. asset pickers). However, these layers ar ...

Clearcoat shader disappears if any asset using the Material leaves lighting

Clearcoat Shader will stop receiving lighting information if any mesh assigned the material using the shader leaves lighting. Also Reproduced in Launcher 4.9 Preview 4, Main-CL-2660934 [Image Remo ...

OSVR does not consistently render to HMD if OSVR Server is not open prior to opening editor/cooked game

It seems like if OSVR_Server is not launched prior to opening the editor, vr-preview functionality will not work (even though the editor starts OSVR_Server at launch). Seems like server must be open ...

Long paths are not supported in NET 4.5

The editor has been modified to support long file names, but the packaging pipeline (which is written in C#) needs to be upgraded to NET 4.6.2 to enable this. Without enabling it, it crashes with a ...

Interactive changes from In-Camera VFX widgets are not transacting to nDisplay until mouse is released

Stop using power of 2 RTs for landscape edit layers

Result : all the RTs allocated for edit layers (in global merge mode) will be padded to the next power of 2 for no good reason, which can lead to out-of-VRAM (as reported by [Link Removed]) ...