Unreal Engine Issues
Unreal Engine Issues
Open Formats: Interchange Import Runtime - Interchange ImportAssetAsync runtime GLB import — materials, textures, tangents, and shaders non-functional in packaged builds (6 issues, UE 5.7.4)
UE - Editor - Open File Formats - Apr 30, 2026Description* We are using Interchange's `UInterchangeManager::ImportAssetAsync()` to import GLB files at runtime in a packaged (Shipping) application. The orchestration layer (`ImportInternal` in `In ...
LODs with screen size 0 in legacy assets are incorrectly converted to 1 on load
UE - Editor - Open File Formats - Sep 11, 2025When loading a mesh asset (static or skeletal) created in an old version of Unreal (e.g. 4.10), any LOD whose LOD screen size was originally set to 0, is converted to 1. This causes LODs that would ...
LODs screen sizes in legacy assets are incorrectly converted to all have the same value on load
UE - Editor - Open File Formats - Sep 11, 2025When loading a static mesh asset created in an old version of Unreal (e.g. 4.10), all LODs have their Screen Size property set to the same value (approximately 1.5). This happens because the static ...
UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation
UE - Editor - Open File Formats - May 1, 2025UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation. The K2Result is not used later in the function, and this ...
Open Formats: Interchange Import PIE - Importing static mesh while a PIE session is running permanently breaks nanite on the asset
UE - Editor - Open File Formats - Mar 12, 2025Importing a Static Mesh during PIE can cause it to never enable Nanite, even if it reports that Nanite is enabled. To re-enable Nanite on the mesh, the asset needs to be deleted and imported again ...
Lidar Point Cloud Plugin functions return empty locations for individual points (both relative and world scale)
UE - Editor - Open File Formats - Feb 21, 2025The locations of individual point cloud points are empty in the array returned from the get_points_in_box_as_copies,get_points_in_sphere_as_copies,line_trace_multi functions. The last boolean argum ...
Interchange Import - Import model with custom collision prevents socket to be imported
UE - Editor - Open File Formats - Feb 5, 2025I would like parity with legacy: 1) only one material 2) socket to be imported Box_Socket file imports same in legacy and interchange: it is just box and socket without collision. ...
Browsing to a "Packaged Level Actor" does not take to the PackagedLevelActor inside the Content Browser.
UE - Editor - Open File Formats - Jan 8, 2025There is a bug inside Unreal Editor when selecting "Browse to Asset" for a Packed Level Actor. Right clicking the Packed Level Actor, all the asset options appear. If you click the "Browse to Asse ...
RegisterAssetTypeCategory failed as all user bits have been exhausted
UE - Editor - Open File Formats - Nov 22, 2024Hi, with adding additional plugins, etc. to our project, we have encountered an issue with registering too many asset categories, such as: LogAssetTools: Warning: RegisterAssetTypeCategory("Water", ...
Bug: Relative File Paths for Asset Source Files are Incorrectly Generated for Engine and Engine Plugin Assets
UE - Editor - Open File Formats - Nov 21, 2024When importing an asset like a Texture asset using the steps mentioned in the Repro steps, the imported asset does not have the correct relative path listed under the newly-created asset's "Source F ...