Unreal Engine Issues
Unreal Engine Issues
Translucency area has stripe-style issue on TSR
UE - Graphics Features - Mar 28, 2024The TSR History Rejection buffer develops a grid-like artifact over translucent, camera-facingplanes. This problem can be mitigated by increasing r.TSR.ShadingRejection.TileOverscan from 3 to 4 with ...
External Reference Spam when converting projects to 4.9
UE - Foundation - Core - Cooker - Sep 1, 2015Map Check message log gets spammed with External Reference warnings when a project is converted to 4.9 from a previous engine version. These warnings don't seem to actually do anything to projects o ...
Access Specifies set to private displayed no warning when called
UE - Gameplay - Blueprint - Feb 21, 2017While using an access specifier for a function that is set to private, does not run the function, but it can be placed into another BP with no warning appearing when the BP is compiled. This issue ...
Crash when using pooled widgets in an invalidation panel
UE - Editor - UI Systems - Slate - Aug 3, 2016Widgets that are pooled are given a pointer to a layout cache, if the layout cache dies, the pointer is bogus. Going to need to move over to using weak pointers to avoid the crash, will add some pe ...
Notify track is not updated immediately when notifies are move to occupy same space
OLD - Anim - Oct 26, 2016When the user moves two notifies onto the same frame, the notify track does not immediately update and add a second track so they don't merge together. For it to update, the user has to perform a s ...
Black screen caused by depth of field on several mobile devices
UE - Platform - Mobile - Apr 24, 2017DOF does not display correctly(screen turns black) on several mobile devices. I could repro the issue on:Samsung GALAXY S7, Android 6.0.1Xperia X Performance (F8132), Android 6.0.1 ...
FWindowsWindow::ReshapeWindow may get called with a NewHeight of 0 when using the editor through VPN, causing a crash
Tools - Jul 10, 2017When calling ReshapeWindow, aspect ratio is determined by dividing the new width by the new height. We could prevent a potential crash here by validating these numbers before performing the division ...
WidgetComponent is not updated with occlusion culling disabled
UE - Platform - XR - May 7, 2025LastRenderTime is never updated with occlusion culling disabled, so the widget component will always stop updating. (see UWidgetComponent::ShouldDrawWidget) Developers can force updates by TickWhen ...
LineTraceSingleByChannel returns a hit for any object it hits, regardless of whether or not that object has the specified collision channel set.
UE - Simulation - Physics - May 5, 2015The collision channel specified in LineTraceSingleByChannel does not appear to be taken into account when the trace is performed. Instead of ignoring any objects that are not set to that channel, an ...
Making magenta noise in Emissive Map when creating proxy mesh
UE - Graphics Features - Nov 26, 2018Since magenta is a special color used for initialization of the UE4 and it may have occurred problem because we are performing a branch using equal.[Link Removed][Link Removed] Licensee wants to us ...