Unreal Engine Issues
Unreal Engine Issues
IsSpatiallyLoaded = false set in actor blueprint is not respected in standalone game
UE - World Creation - Worldbuilding Tools - World Partition - Jul 1, 2024In past compatibility detection in FWorldPartitionClassDescRegistry::PrefetchClassDescs, as AssetRegistry.TryGetAssetPackageData returns UE::AssetRegistry::EExists::Unknown in standalone games, so t ...
Rect lights cause visual noise on the light rendered when using raytracing
UE - Graphics Features - Lumen - Nov 12, 2019Rect lights cause visual noise on the light rendered when using raytracing. It is easier to see when you get rid of all other light sources in the scene. I have attached an example project. This se ...
When move selected foliage to level, Foliage can not move to level.
UE - World Creation - Worldbuilding Tools - Foliage - Jul 18, 2017With 4.15, I can move Foliage to "Sublevel B", but I can not move it with 4.16. It seems to be affected by the update in 4.16 (New: When moving a foliage asset to a new level, you will now be prompt ...
Steam Overlay does not show in Win64 Shipping builds when run outside of Steam
UE - Networking - Nov 11, 2015Steam Overlay does not show in Win64 Shipping builds when run outside of Steam. The Steam client can be running, but unless the .exe is opened through Steam itself, the Overlay will not appear. Note ...
Enum with "MAX" element at other than the last element removes user defined last element
UE - Foundation - Core - Oct 18, 2019FNativeClassHeaderGenerator::ExportEnum produces this behavior. If an enum has “MAX” somewhere in the array, it removes last element. I tested my code to fix the issue.// code placeholder bool UE ...
Clothing Data Cannot Be Created If The Old Data Was Deleted While Applied
UE - Simulation - Physics - Character - Jan 16, 2020When you delete clothing data on a skeletal mesh before removing it you cannot apply new clothing data. The engine still thinks that there is clothing data is applied. I tested using the Paragon: Tw ...
Alembic Geometry Cache is corrupted on reopening of project leading to crash
UE - Foundation - Core - Dec 20, 2016Alembic Geometry Cache crash when re-opening the project and a map that contains this asset or adding it to any existing/new levels will instantly crash the editor. This asset works correctly in the ...
Window to select Skeletal Mesh does not pop up when editing a new IK asset
UE - Anim - Rigging - Retargeting - Apr 26, 2023When opening a new IK rig, the window that prompts the user to select a skeletal mesh does not open immediately. However, a skeletal mesh can still be selected in the details panel in the IK window. ...
A crash happens with a combination of Event Receive Tick AI and a pawn losing possession
UE - AI - May 18, 2022User reports this is a regression because it worked in 4.27, but they converted to 5.0.1 and now it causes a crash. However, I'm unable to verify this at this time. A crash happens with a combinati ...
MetalRHI Asserts When Using "Profile GPU" With RHI-Thread/Parallel-Execution
UE - Graphics Features - Sep 14, 2016When the RHI thread is enabled (with or without parallel-execution) for Metal it isn't currently possible to run "profilegpu" because the GPU timestamp emulation code isn't multi-thread safe and pro ...