Unreal Engine Issues
Unreal Engine Issues
FBX exporting from Sequencer is inconsistent when both an object and one of its components have a transform track
UE - Anim - Sequencer - Jul 30, 2020When both an object and one of its components have transform tracks, exporting to an FBX will have inconsistent results. ...
UAT crashing at end of build calling FScopedSceneLock_Chaos::LockScene()
UE - Simulation - Physics - Editor - Nov 7, 2024UAT has intermittent crashes at the end of packaging. Looks related to [Link Removed] . Could be that the solver is being destructed after the null check earlier in the function if this is multit ...
Toggling sub instance properties does not update Anim Preview Editor panel
OLD - Anim - Aug 3, 2016When the user toggles sub anim instance properties, the properties will be enabled on the node, but will not be shown in the Anim Preview Editor. The user will have to compile the animation bluepri ...
Editor mode tabs can get corrupted in the layout
UE - Editor - Workflow Systems - Apr 2, 2024This can happen with any mode. What actually happens is, when closing the Editor, the Editor saves its layout before closing the active Editor Mode, which leads the editor to think the tabs are sti ...
The collision is wrong when the static mesh scale is set as negative value
UE - Simulation - Physics - Feb 15, 2022I checked the c.haos code quickly. I think it caused by the function "bool FInitBodiesHelperBase::CreateShapesAndActors()". In this function, the CreateActor_AssumesLocked function will ignore the s ...
ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes
UE - Rendering Architecture - Materials - Sep 6, 2021The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...
Replicated component leak on clients if RPC forces construction and server destroys it in the same frame
UE - Networking - Jan 3, 2019RPCs called on actors force a channel to be opened and the actor to be replicated at least once. If the RPC is called on a new replicated component while the actor channel is already open, but the ...
Components added to an Actor Blueprint may not be propagated to Actors inside World-Partition Level Instances
UE - Gameplay - Blueprint - Apr 29, 2024When a world partition level (but streaming disabled) is placed as a LevelInstance in another world partition level, actors in the inner level are cooked with an outdated component hierarchy until t ...
tvOS crash on startup with Shared Material Shader Code enabled
UE - Platform - Mobile - Jul 9, 2019Enabling Shared Material Shader Code will cause a crash on tvOS From user: "We originally enabled Share Material Shader Code long before trying a tvOS build, making this crash tricky to debug. W ...
Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive"
UE - Gameplay - Blueprint - Apr 26, 2017Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive" Note: Appears to be a regression (worked in 4.15.1) Error example: UATHelper: Packaging (Windows (64-bit)) ...