Unreal Engine Issues
Unreal Engine Issues
Material containing null expressions crashes when launching the editor with the -Game flag
UE - Rendering Architecture - Materials - Nov 23, 2023This comes from a UDN report. [Link Removed] When launching the editor with -game, if a material contains a null expression (for instance because that material expression has been removed), the bin ...
Ledge Movement Stuck (CheckLedgeDirection is always returning true)
UE - Gameplay - Nov 20, 2023The issue appears to that CheckLedgeDirection almost always returns true, which returns the leftward side step. This is correct for the leftward direction, but is not valid for the rightward directi ...
Movie Render Queue shows different behavior when a sequencer window is opened
UE - Anim - Sequencer - MRQ - Nov 20, 2023When running Movie Render Queue job for a sequence which uses FKControlRig and a sequencer window is opened, Track->ReplaceControlRig() is called every single frame, not only an initial frame. This ...
SplineMeshActors all share the first spline placed rather than their own spline when using the mobile renderer.
UE - Graphics Features - Nov 17, 2023SplineMeshActors all share the first spline placed rather than their own spline when using the mobile renderer. This was first reported in this UDN: https://udn.unrealengine.com/s/question/0D54z0000 ...
Material previews in the content browser display the default material checkerboard
UE - Rendering Architecture - Materials - Nov 16, 2023Occasionally material and material functions previews in the content browser are displayed with the default material checkerboard, perhaps due to shaders not being compiled. UDN users are also expe ...
Screenspace Denoiser creates artifacts for Ray Traced Shadows
UE - Graphics Features - Ray Tracing - Nov 13, 2023Screen space denoiser creates two types of artifacts: artifacts around boundary for general lighting The artifact is there before 5.2 but since the ray traced shadow denoiser denoises on the sqr() s ...
iOS launch screen might briefly appear in Portrait before switching to Landscape
UE - Platform - Apple - Nov 13, 2023Sometimes on the first launch of the game after install, the launch image will be a cropped portrait drawn in landscape orientation, on the left side of the screen, with the top and bottom getting c ...
Creating a control rig via FControlRigBlueprintActions::CreateNewControlRigAsset crashes
UE - Anim - Rigging - Control Rig - Nov 10, 2023FControlRigBlueprintActions::CreateNewControlRigAsset is crashing in ResolveObjectHandleNoRead. Looking at the control rig in UControlRigBlueprint::Serialize, it's marked as pendingkill but I'm uns ...
[AI] BTService_RunEQS has rare crash during OnQueryFinished
UE - AI - BehaviorTree - Nov 9, 2023The crash log shows Error: Ensure condition failed: MyMemory->RequestID != INDEX_NONE [UE5\Engine\Source\Runtime\AIModule\Private\BehaviorTree\Services\BTService_RunEQS.cpp][Line: 93]. Other logs ha ...
ContentBundleContainer does not load new bundles in PIE after level transition
UE - World Creation - Worldbuilding Tools - Nov 9, 2023I believe this issue stems from the ContentBundleContainer not populating the StreamingObjects of the UContentBundleDuplicateForPIEHelper. PIE in the same level as the bundles works as the editor h ...