Unreal Engine Issues
Unreal Engine Issues
When using 'r.VT.SplitPhysicalPoolSize 64' with nanite meshes, mesh painting does not update in real time (only updates after stroke finished), duplicates mesh painting across separate instances of a mesh, and sometimes doesn't show up in PIE.
UE - Rendering Architecture - Mar 3, 2025When using Mesh Painting on nanite meshes in 5.5 with 'r.VT.SplitPhysicalPoolSize' set to non-zero values (e.g. 16, 64), several issues occur, such as: 1. Painting doesn't update in real time (only ...
Non-Power of 2 images are not rendering on iOS devices
UE - Platform - Mobile - Feb 2, 2015If you create a UMG with an image in the Umg that is not a power of 2, The image will not appear on an iOS device. Tested this on a Android device (Nexus 5 with ETC1 and ATC. PVRTC will not allow t ...
Image widget does not scale the inner borders correctly
UE - Editor - UI Systems - Oct 24, 2014When Scaling in and out in the UMG blueprints with an image applied to an image widget that is set to border as it's "Draw as" selection the image does not scale correctly. EDIT: The UI should prev ...
Regression - Nav mesh is not generated on BSP brushes after loading a map
UE - AI - Navigation - Dec 18, 2024In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...
Regression - Nav mesh is not generated on BSP brushes after loading a map
UE - AI - Navigation - Jan 14, 2025In UE 5.5, when loading a map and selecting "Build – Build Paths", the nav mesh is not generated on any BSP brushes (although it is correctly generated in static meshes). This did not happen in earl ...
Scrollbars bounce back when scrolling with the mouse wheel
Tools - Aug 8, 2016Multiple scrollbars throughout the editor bounce back when the user scrolls with the mouse wheel. The effect looks like the scrollbar is rubber banding when scrolled. This issue has been found wi ...
Substrate- black outline appears when using sharp contrast mask to blend slabs
UE - Graphics Features - Oct 4, 2024Substrate materials have a thin border of black pixels between slabs. These lines can be made more apparent by changing the Diffuse Albedo color of the two slabs to pure white. This will remove the ...
Question marks are converted to %3F when used in the Launch URL node on an iOS device
UE - Platform - Mobile - Nov 8, 2016When the Launch URL blueprint node is used to open a link on an iOS device, any question marks in the URL are converted to %3F instead and invalidate the link. This is different from the behavior on ...
SunTemple scene does not update properly on iPhone 6S
UE - Platform - Mobile - Jul 18, 2017On the 6S, the SunTemple scene is almost unresponsive. As the player uses the thumbsticks, the lightmaps from the windows rotate to mach the player's movement; but they are the only thing. This doe ...
Crash when breaking Level Instance within Data Layer Asset
UE - World Creation - Worldbuilding Tools - World Partition - Feb 2, 2023A crash occurs when breaking a level instance contained in a data layer. This does not occur in 5.0.3, however the behaviors of Data Layers are different in 5.1 where the Data Layer asset is added ...