Unreal Engine Issues
Unreal Engine Issues
Shadows are cast by meshes that have "Self Shadow Only" enabled while "Ray Tracing" is enabled with DX12
UE - Graphics Features - Lumen - Nov 6, 2019Meshes that have "Self Shadow Only" enabled are still casting shadows if ray tracing is enabled with DX12. Found in 4.23.1 CL#9631420 Reproduced in 4.22.3 CL#7053642, 4.24 CL#10053396, 4.25 Main CL ...
Imported FBX causes a crash
Tools - Apr 22, 2016Edit MattK: This seems like more of a cooking issue than an fbx issue. The crash is related to nav collision When adding a FBX import into your project, if you do not close the project out and ope ...
Widget Components Add Thin Black Outlines to Images
UE - Editor - UI Systems - Dec 13, 2019When a slate element that uses a png with a transparency the edges have a black outline. When the Widget3DPassThrough material is applied to the widget the effect is lessened, but is the outline sti ...
Replicated Struct with TMap property cannot compile even with custom NetSerialize
UE - Networking - Dec 9, 2021While TMaps are not supported for replication, previously one workaround for this was to wrap the TMap property in a container struct. Users could then implement a custom NetSerialize function for t ...
World Space Transparent Widgets Have Motion Blur
UE - Editor - UI Systems - Feb 24, 2020When a world space widget has their blend mode set to transparent they look blurry in motion. The effect is more pronounced when the camera rotates instead of when it is translated. Found in 4.24.2 ...
Locale is not auto-detected correctly for French or German Windows 7
UE - Editor - UI Systems - Localization - Jun 30, 2016Reports that a UE4 project launched on French or German Windows 7 is not automatically correctly setting the culture from the OS' setting. Can probably install French or German support for a copy o ...
Physics Constraint Actor Won't Disable Collision Between Two Actors That Are Already Colliding
UE - Simulation - Physics - Feb 17, 2020Meshes that are colliding that are set as constraint actors don't follow the Physics Constraint Actors "Disable Collision" parameter if they are colliding prior to being set as constrained actors. ...
Using ServerTravel <MapName> command with Seamless travel causes level blueprint logic to not run on client
UE - Networking - Jan 14, 2020When calling the ServerTravel command when using seamless travel, level blueprint logic is not being run on the client side. NOTE: Adding a small delay (tested with .2 to 2 seconds) after the "B ...
On mobile devices, Audio that is trigger with a TriggerBox are playing from the beginning of the Audio Clip and not from the selected time
UE - Platform - Mobile - Jan 13, 2015If you have a trigger box trigger an ambient audio clip when you enter the box, the audio clip will always play from the beginning even if you have the Start time starting later in the audio clip. ...
Ambient Cubemap Assignment in Post Process Volume does not work with Forward Renderer
UE - Graphics Features - Nov 8, 2016The Ambient Cubemap assignment in a Post Process Volume doesn't work when using the Forward Renderer. I want to note that Cubemap assignment in the Skylight does work. I checked this just to make s ...