Unreal Engine Issues

Composite font uses a sub-font, even when the sub-font doesn't support the character

I have a fix for this shelved in CL# 2937344, so it would be good to get it into 4.12 once the user verifies the fix. ...

'Particle Position', 'Particle Time' and 'Particle Random' material nodes not supported on mobile

Crash when importing Alembic data with a large number of vertices if Merge Meshes is enabled.

[Pose Driver Connect] Animation imports that need "Force X Front" are not supported.

User's who have imported and set their skeleton to Force X Front, when importing animations from pose driver do not have an option or autodetect setup and the animations are imported normally. This ...

[Interchange] Time zero bind pose do not support multiple bind pose for the same bone

If you import a model containing multiple mesh using the same bones but with different bind pose, the time zero skin result will be wrong. ...

Rewind Debugger does not support visual tick marks for Visual Log logline events.

When using UE_VLOG events in blueprint or in code, the rewind debugger does not show those events visually on the track or output those events to the details view. ...

Editor slows exponentially when selecting an instanced static mesh in viewport that has a large number of instances

Editor slows down exponentially when spawning in a large quantity of instanced meshes. ...

[Feature Request] Add material node or function to easily support AR passthrough camera

See the UDN link. This is currently possible with some material work, but should be made more robust to automatically look up the passtrough texture resolution and to deal with apps deployed in por ...

STEAM: Modifying the connection slot numbers can lead to a condition where the lobby is no longer joinable

Session data no longer updates when the backend tells us our session is full which then limits the ability to modify the session size on the fly. Because of this, joinability will be set on the sess ...

fbx attribute curve import do not support correctly tangent at the start end end of the curve

We are not reading all the key flags and we do not import correctly start key and end key tangent. I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket ...