Unreal Engine Issues
Unreal Engine Issues
Available network bandwidth is too low for uncapped but slow frame rates
UE - Networking - Sep 24, 2020The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...
Templated enum GetValueAsString function returns incorrectly formatted string
UE - CoreTech - Aug 19, 2020For many years there has been a static function on UEnum called GetValueAsString which would convert an enum like EAttachmentRule::KeepWorld to the string "KeepWorld", if you passed in the explicit ...
Merged actors cannnot cast shadows when source actors Cast Shadows is disabled
UE - World Creation - Worldbuilding Tools - Merge Actor - Aug 19, 2020Merging actors with cast shadows disabled causes the merged actor to be unable to cast shadows at all. Toggling the Cast Shadows option does not resolve the issue. This is seen in //UE4/Release-4.2 ...
When always loading last project, project logs are saved to the engine folder
UE - Editor - Aug 6, 2020Checked on the Binary version //UE4/Release-4.25 stream CL 13942748 Version 4.25.3, logs are also saved into Engine folder: \AppData\Local\UnrealEngine\4.25\Saved\Logs instead of a Project folderIf a ...
Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work
UE - Niagara - Cinematics - Aug 5, 2020Modifying Override Parameters on NiagaraActor blueprints created from a System Actor does not work The System component appears to only use the default value set in the System. This issue does no ...
Changing blueprint default values inside arrays only updates loaded child blueprints
UE - CoreTech - Jul 30, 2020The rules for delta serialization in UE4 are complicated, and the editor tries to hide them from you, which works 90% of the time but can lead to confusion and data loss in other situations. In the ...
Blueprint classes are listed in Object pickers, but will not work as expected
UE - Gameplay - Blueprint - Jul 28, 2020Because of the way blueprints are implemented, the "Blueprint Class" asset actually points to the editor-only UBlueprint object. Because of this, all blueprint classes will show up as options for ge ...
Pasted variable's default value is not preserved if you compile between undo and redo
UE - Gameplay - Blueprint Editor - Jul 17, 2020If the user compiles the blueprint between undoing and redoing the pasting of a variable, the variable's default value is not retained. ...
Character rotations can diverge between clients and client/server briefly under packet loss and using bOrientRotationToMovement
UE - Gameplay - Player Movement - Jun 4, 2020At some points the rotations will diverge briefly while the client and server attempt to rotate to the orientation direction by going different directions about the rotation axis. ...
Screen space reflections are flickering when using no Anti Aliasing
UE - Graphics Features - May 20, 2020This is a regression from 4.24.3 (CL-11590370). SSR begins to flickers when AA is disabled when moving around the scene. This was reported and tested in 4.25 (CL-13144385) and reproduced in Main 4. ...