Unreal Engine Issues

When changing the Material of a CompleCollision during PIE, the change is not applied to the PhysicsMaterial.

If changing the material during PIE, the content of the material will be reflected immediately, but the physics material will not. Once the Mesh (Complex Collision Mesh) is cleared and reset, it wil ...

Unable to recapture the network channel data after stop the profile

It appears that networking insights data is not being gathered when a delay capture is started with the "trace.send" or "trace.start" command. If we were starting from the application startup time w ...

Subsurface Scattering Checkerboard with SceneColourFormat 3 (High Scalability) leads to a visual artefact when temporal upscaling is in use

Primarily visible at very low internal resolutions (25-33%), the SSS checkerboard with an RGB scene colour format (r.SceneColorFormat 3) causes a double-image artefact both internally and on the sil ...

A corrupted Twinmotion file is created when there is not enough space on disk.

Static mesh loses static mesh reference when Alt-dragged in viewport if filepath contains []

Static meshes lose their static mesh reference when alt-dragged in viewport. This only occurs if the mesh is located in a filepath containing square brackets ( [] ) within the filepath name. Additio ...

Changing between multiple Streams that are contained within an array does not work

Changing between multiple Streams that are contained within an array does not work. ...

Using Bake Material Position Offset Into Collision causes landscape to have no collision

Creating a material with World Position Offset and enabling "Bake Material Position Offset Into Collision" causes the landscape to have no collision. Disabling this feature causes collision to come ...

Delay nodes used in a macro cause subsequent macro calls during the delay to never complete

Calling a macro that has a delay node again before the original call's delay could finish will cause the second call to be ignored when reaching the delay node. This did not occur in 4.12.5 and is n ...

iMac: Whenever _AMDDeviceDetached event occurs, the editor hangs.

The user is reporting that, on their iMac, Whenever _AMDDeviceDetached event occurs in the Activity Monitor, the editor hangs utilizing a reported 101% of the CPU. *The user claims this is 100% re ...

Renaming a material isn't reflected in the Static Mesh Editor until it is closed and reopened

Renaming a material isn't reflected in the Static Mesh Editor until it is closed and reopened. User Description: Let's have imported static mesh with material. Then select material using "Browse t ...