Unreal Engine Issues

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

In a listen server, when a client moves, anim notifies don't get fired for the server/host.

Reproduced 3/3 times. Was not able to reproduce in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. ...

[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. ...

Content Examples: Blueprints_Overview Stand 1.7 Spark particle system does not fire from coin

During runtime, the red coin in Stand 1.7 on the Blueprints_Overview map of Content Examples should emit a large spark particle system 5 times. While investigating, I tried disabling "Use Fixed Rel ...

[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 ...

Windows Mixed Reality - Setting haptic to 1 and firing haptic causes editor crash

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 ...