Unreal Engine Issues
Unreal Engine Issues
'Platform Stats' incorrectly display the number of Texture Calls for a material
UE - Rendering - Architecture - Materials - Jul 29, 2024When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...
Nanite displacement issue when using along non-uniform scaling
UE - Rendering - Features - Nanite - Feb 26, 2026Nanite Tessellation displacement direction is incorrect for landscapes with non-uniform scales. It seems to use the normal from the unscaled landscape, which can result in the displacement causing t ...
Engine Crashing with AMD R9 2 and 3 Series Cards
UE - Graphics Features - Sep 23, 2015Multiple users are reporting crashes in the Engine when using an AMD R9 380 and 390 series cards. There was a request to have these cards added to compat lab for testing, but have not heard any upd ...
Linked Anim Graph With Mesh With Post Process BP Has Faster Animation Playrate
OLD - Anim - Jan 20, 2020When an animation blueprint is using the "Linked Anim Graph" node and it's skeletal mesh has a post process animation blueprint the animation is played at the wrong playrate. Linked Anim Graphs wer ...
ScreenAlignedUV doesn't work correctly on some mobile devices chipsets
UE - Platform - Mobile - Nov 21, 2016Using ScreensAlignedUVs material node on some devices does not render correctly at farther distances. Devices tested with: Working: iOS 5s and Pro Working: S7 Edge - SM-g935P Working: LG G4S - ...
Anisotropy not working correctly when used in Material Layers
UE - Rendering - Architecture - Materials - Jan 17, 20241. When a Material Layer is applied and there is no node connected to Anisotropy in the master material(M_Test_1), the material does not function correctly after packaging, although it works properl ...
Adjusting transform of a mesh with LODs causes LODs to flicker
UE - World Creation - Worldbuilding Tools - Foliage - Jun 3, 2015If a hierarchical instanced static mesh has LODs and is scaled in a blueprint, the mesh will rapidly switch between LODs, causing a flickering effect. Note: This only seems to occur if the camera ...
Unable to Save or Close Editor after Copying .FBX to Content Folder via Project Directory
Tools - Jul 5, 2017The editor is not allowing users to save or close a project after an .FBX file has been copied to the project's Content directory and allowing the Content Browser to discover the change in source fi ...
Consistent Crash using Cinematic Viewport on Linux
UE - ACT Character - Sequencer - Aug 13, 2026We are getting multiple crashes on 5.8.1 when trying to use the cinematic viewport on Linux, the most consistent way it's been reproduced is by clicking on the blue frame number to the left of the c ...
Physics Bodies for bones that are scaled in the Anim Graph are not scaled properly in game
UE - Simulation - Physics - Jun 14, 2016Physics Bodies for bones that are scaled in the Anim Graph are not scaled properly in game. This seems to cause a jittering effect when simulating bodies. User Description: I blend physics into th ...