Unreal Engine Issues
Unreal Engine Issues
Fixup of spawnables from 5.4 to 5.5 loses custom track names
UE - Anim - Sequencer - Feb 5, 2025In the process of upgrading from 5.4 to 5.5. One of our systems relies on the internal track names in the sequence to dynamically find an actor to bind the track to. As I was testing the system in ...
Unnatural de-overlap occurs when moving inside a mesh-type collision located far from the origin
UE - Simulation - Physics - Jan 8, 2025The problem appears to occur when the distance from an edge is mixed with positive and negative values in VectorEPA function. The following workaround is suggested that uses absolute values of dista ...
Exporting process stuck in "Estimated time" phase when uploading projects with Panorama Sets & Presentation after freshly booting TM
TM - Core - Dec 4, 2024Cloud Build: TWINMOTION CL app-2023.2.33001994-2024.1.37216540-2025.1.38508591-cloud-2024.12.02.095314 (DEV / STAG, CHROME) Issue: Exporting process stuck in "Estimated time" phase when uploading p ...
Bug in ULevel::FixupActorFolders.
There is a potential bug in ULevel::FixupActorFolders() in the FixDuplicateFolders section: Suppose you have a folder hierarchy that looks like this:A B(1)B(2) C(1)B(3) C(2) where the letters ...
AssetLocalization does not work and the asset does not switch to localization asset even if culture is specified
UE - Editor - UI Systems - Localization - Dec 20, 2024Asset localization does not work. When playing in standalone, it shows "jp" texture instead of "en" texture even if "-culture=en" is set. This appears to be a regression issue, as the localization w ...
[Interchange][FBX] Issue with asset name clashes after auto import
UE - Editor - Content Pipeline - Import and Export - Jan 22, 2025The mesh changes and the asset name stays the same while the two FBX are completly different: different filename, different mesh names in the FBX CF video for repro steps. https://forums.unreale ...
Level viewport toolbar buttons on the right side are collapsed even if the viewport has enough width
UE - Editor - Applied Usability - Jan 21, 2025The following worka round works :float SLevelViewportToolBar::GetTransformToolbarWidth() const { ... #if 0 // float ViewportToolBarWidth = static_cast<float>(GetCachedGeometry().GetLocalSize(). ...
ResavePackages Commandlet Consistently Crashes in 5.3 In Material PreSave
UE - Rendering Architecture - Materials - Feb 20, 2024Running the ResavePackages commandlet will consistently result in a crash. The callstack is here: Assertion failed: !IsRooted() [Link Removed] [Line: 265] UnrealEditor_Engine!UMaterialInterface::P ...
Closing a Geometry's Collection Dataflow Editor window when the ChaosVehiclePlugin is enabled is crashing the Unreal Editor when running it with the -stompmalloc flag
UE - Simulation - Physics - Jan 27, 2025As the title describes, closing a Geometry's Collection Dataflow Editor window when the ChaosVehiclePlugin is enabled is crashing the Unreal Editor when it is running with the -stompmalloc flag. The ...
UDebugDrawService doesn't display text on Blueprint Editor viewport from UDebugComponent
UE - AI - Debugging - Jun 17, 2024By creating a DebugComponent, the texts added to this component are not displayed in the viewport of the Blueprint editor. This is because the UCanvas reference that is being passed is that of the ...