Unreal Engine Issues

ExtendDefaultLuminanceRange causes black rendering on Mobile renderer

URigVMBlueprint::CompileLog can spam the editor log when verbosity is set to Log

It seems that URigVMBlueprint::CompileLog is spamming the log whenever a call to BP_SCOPED_COMPILER_EVENT_STAT, including for blueprints that are unrelated to control rig.  The log messages are only ...

Special modifier key inputs do not register in editor if the key press occurs instantly

Special function key presses and hotkey shortcuts do not register in the editor if they fire key presses instantaneously (0ms). In particular, TypeMatrix keyboards reproduce this error using keyboar ...

Crash when adding sphere reflection capture to a scene

An occasional crash occurs when adding a sphere reflection capture to the scene from the place mode panel. This issue has a low repro, but has been seen a couple times. Repro rate seems to be around ...

Startup Movies Black Screen in Packaged Projects

Startup movies displaying black screen in packaged projects. Tested with 4.20p3 4135216 and 4.21 4157973 ...

Calling "GetCameraImage" rapidly ~10 times causes ARKit camera feed to stop updating

If you call the "GetCameraImage" function rapidly ~10 times, it causes the ARKit camera feed to stop updating.  Waiting for awhile or tapping some more seems to bring it back.   Tested on macOS H ...

Lighting channels on static mesh doesn't change correctly at runtime

If call SetLightingChannels in blueprint to set a static mesh's lighting channels at runtime, the mesh in the viewport seems can't update to the new lighting channel setting.  A weird thing is, if ...

LastRenderTime does not update when Occlusion Culling is disabled

When disabling Occlusion Culling, Components will not have their Last Render Time updated. ...

Static Mesh Component Scale Displays Incorrect Values on Static Meshes as Scene Roots

Static mesh components incorrectly display scale information through the Detail's Pane and Blueprint editor window until simulation is pressed. This occurs if the static mesh component is moved to t ...

Transform does not update after first time for Instance Static mesh in Blueprint Editor

In 4.15 When you update the transform of an instance static mesh a second time the editor does not update the location, to get the update to display correctly you must close and re-open the blueprin ...