Unreal Engine Issues
Unreal Engine Issues
Enhanced Input duplicately fires input event when used in Widgets.
UE - Gameplay - Input - Jun 9, 2023When creating a UserWidget and creating a process to receive input events with Enhanced Input, input events may be generated multiple times in duplicate. To reproduce this problem, create a Widget a ...
Material Particle SubUV Sample does not work with Tex Object
UE - Rendering Architecture - Materials - Aug 29, 2025The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. ...
Event Trace Log prints node actions multiple times
UE - Gameplay - Blueprint - Jun 10, 2015If a blueprint has a breakpoint on a node and that node is utilized in PIE, the Event Trace in the Debug Log window will register each action taken by the blueprint multiple times. ...
Color Picker changes Hex Value when manually entered
Tools - Aug 22, 2014In the Material Instance, the color picker will change the color when typing in the Hex Value. IMPACT: Incorrect color selection through manual Hex Code input WORKAROUND: Do not ...
Difference in Physics on Client in Standalone vs PIE
UE - Networking - Dec 3, 2015Difference in force on an actor on a client in a dedicated server scenario between PIE and Standalone. Tested in 4.10 and 4.11. Test project attached. ...
Max Depenetration Velocity cannot be set to zero after setting it to a non-zero value
UE - Simulation - Core - Mar 1, 2021It seems that when setting the Max Depenetration Velocity to a non-zero value, you are then unable to set it back to 0. Tested in //UE4/Release-4.25 @ CL 14469661 and this did not occur so marking ...
Problems rendering higher resolution than 1080p from matinee with "Use Separate Process"
Tools - Apr 6, 2016Problems rendering higher resolution than 1080p from matinee with "Use Separate Process". Seems to render only part of the frame and is stretched. This is a regression from 4.10. [Image Removed] ...
Static light reflections do not honor Min Roughness settings for lights.
UE - Graphics Features - Aug 10, 2015When using static lighting with Reflection Captures, the light sources Min Roughness setting is not honored. This is part of the new update for Reflection Capture Actors to render the light shape ...
When changing the variable name of Parent Blueprint, only Child Blueprint existing on the opened level becomes Dirty.
UE - Gameplay - Blueprint - Oct 20, 2017Changing the variable name of the parent Blueprint also effects the changes to the child Blueprint, but the Dirty result changes depending on whether it is placed on the level. This means that Child ...
Data like Camera Tracks can get corrupted inside Level Sequences when Undoing some operations
UE - Anim - Sequencer - Jul 22, 2025Camera trucks can get in a invalid state when you undo certain operations. One example would be undoing a camera set that has been added to a camera track. When you undo that operation, other camera ...