Unreal Engine Issues

When the value of the TMap variable of the child blueprint is changed and compiled, it will restore to the default value of the parent blueprint.

For TMap variables of type struct created in blueprint, if change the default value in child blueprint and compile, it will restore to the default value of the parent actor. This problem does not o ...

Grass does not show up when I override the Material of LandscapeComponent.

Regression checked in //UE4/Release-4.26.2 CL 15973114 the issue is not reproduced thee ...

The process may not return to the root node after the Wait Task is completed.

If the Wait Task is completed for the first frame, it may not return to the root node even after Finish. This can be avoided by increasing the wait time of the Wait Task (see CaseOK.mp4). When this ...

"DynamicMaterialParameter1" in Dynamic Material Parameters module is initialized with "DynamicMaterialParameter0".

If you use a transparent Material for one of the multiple materials, it will always show up in the raytraced reflection.

Crash editor after editing property of TwoBoneIK node

Crashes after editing properties of TwoBoneIK node. If following the reproduction steps, the binding of NodePropertyDelegateHandle will not be removed, causing illegal access on the second editing. ...

Animations do not play correctly when scrubbing at high speed while in Keep State.

If you check the attached GIF, you will see that when you jump the playback position, the animation stays in the same state as before the jump. I suspect this is a specification, but the user is req ...

Decal of Emissive is not displayed on thumbnail.

I get a compile error when using Particle SubUV nodes and tessellation.

I think tessellation will be discontinued in the future, but I will report it just in case. The licensee is not keen on fixing this problem. ...

Compilation error when using Particle SubUV in Niagara Mesh Particles with Raytracing enabled.

The licensee has shared the following workaround for modifying NiagaraMeshVertexFactory.ush. struct FVertexFactoryInterpolantsVSToPS { TANGENTTOWORLD_INTERPOLATOR_BLOCK #if USE_PARTICLE_SUBU ...