Unreal Engine Issues
Unreal Engine Issues
Incorrect values from NAND node with 3 inputs
UE - Gameplay - Blueprint - May 2, 2017The values printed from the nand boolean node display incorrect values for the specific set-ups with 3 inputs that are in the repro steps. The node works as intended with 2 inputs, and with some of ...
Alt tabbing into the Blueprint Editor while a Microsoft IME keyboard is active causes the editor to freeze
Tools - May 15, 2017If you change focus to the Blueprint Editor (Alt+tab) while a Microsoft IME keyboard is active, the editor will freeze for a short time. The duration of the freeze is dependent on the number of blue ...
Particles Do Not Obey Lighting Channels
UE - Niagara - Apr 17, 2018Particle systems ignore lighting channels - no matter what channel a light is on (even if no channels are selected), it will affect lit particles. Changing lighting channels on the particle itself h ...
Editor Shortcuts stop working if the editor is launched with a non-Latin-based language
Tools - Nov 4, 2019Editor shortcuts will not work if you launch the editor with a non-Latin-based language (ex. Russian, Chinese). The editor must be closed and restarted with English (or possibly any Latin alphabet- ...
Capture Source not changing in Planar Reflections
UE - Graphics Features - Sep 14, 2020Changing the Capture Source in Planar Reflections is not working as expected. Without being able to change the source, Post Process Materials are not rendering in the Reflection. Reported in versio ...
Input isn't recognized for Shift+F, or just the F key when the Shift key is also pressed down
UE - Gameplay - Input - Nov 23, 2021This is a regression Tested in: //UE4/Release-4.26.2 CL15973114 Binary - Did not reproduced //UE4/Release-4.27.1 CL17735300 Binary - Reproduced //UE5/Release-5.0-EarlyAccess CL16682836 Binary - Repr ...
Left Clicking a menu that contains an option with a submenu will cause the submenu to close while hovering its options
UE - Editor - UI Systems - Mar 25, 2022If a menu has an entry that is a submenu, and that submenu has entries in it that are also submenus, then the entire menu will close when left clicking the submenu button instead of hovering it. So ...
In-Memory replay checkpoints incorrectly deleted when stream length is less than TimeBufferHintSeconds
UE - Networking - Mar 18, 2024The buffer start time is calculated by subtracting the TimeBufferHintSeconds from the stream length: const uint32 BufferStartTimeMS = UE::LWC::FloatToIntCastChecked<uint32>(FoundReplay->StreamInfo.L ...
Blueprint Editor: BP functions display dropdown instead of checkboxes for uint8 enum parameters
UE - Gameplay - Blueprint Editor - Aug 8, 2017I traced through the callstack and it looks like the problem is as follows:in order for the BP function to compile, its enum parameter must be uint8, because that is the only type supported by BP fu ...
Blueprints converted to static mesh with negative scales for a component will invert the faces
Tools - Dec 19, 2016Negative scaled static mesh components in a blueprint will invert their faces when converted to a static mesh. Note that this does not happen in the following situations: If the BP is scaled negat ...