Unreal Engine Issues
Unreal Engine Issues
Packaging fails after changing from Dynamic to Static Nav Mesh Runtime Generation
UE - AI - Feb 8, 2016If you package with Runtime Generation set to Dynamic and then switch to Static and attempt to repackage, the packaging will fail with the following error message.[2016.02.08-16.18.14:511][217]MainF ...
Controller::OnPossessedPawnChanged broadcasts (Pawn->null) but not (null->Pawn) during AGameModeBase::RestartPlayer()
UE - Gameplay - Sep 17, 2025Context AController has a blueprint assignable delegate that fires when the possessed pawn changes. This should fire in both singleplayer and networked games. The bug is reproducible in single play ...
[CrashReport] UE4Editor_VulkanRHI!VulkanRHI::VerifyVulkanResult() [vulkanutil.cpp:357]
UE - Graphics Features - Nov 10, 2017This is a low frequency crash that has occurred since at least 4.14 User DescriptionsStarted with vulkan.. crashed immediately.Activated vulkan, and moved around. Only that.I imported a 3d model in ...
"REFLECTION CAPTURES NEED TO BE REBUILT" is displayed on a cooked game.
UE - Graphics Features - Lumen - Jul 29, 2020This issue occurs when streaming levels including reflection captures are displayed with delay. When it finishes loading assets, reflection capture textures are uploaded to the GPU. Then the leve ...
Add Chunks button in asset audit tool does not function because of name compare problem
UE - Editor - Content Pipeline - Content Browser - Aug 5, 2020The Asset Audit window uses the content browser to display information about both real assets and fake assets like chunk definitions. When you hit the Add Chunks button, it adds several fake assets ...
check(!bPostTickComponentUpdate) fails triggered by ~FStaticMeshComponentBulkReregisterContext() and FD3D12DynamicRHI::ProcessInterruptQueueUntil()
UE - Gameplay - Components - Jul 23, 2024Context: Some ActorComponents can schedule end-of-frame work which UWorld executes later in the frame in UWorld::SendAllEndOfFrameUpdates(). By-design it appears that it's not allowed to schedule mo ...
If remove the muted side from the two child tracks in sequencer, the remaining tracks will be muted forever
UE - Anim - Sequencer - Feb 4, 2022The cause was that the information remained in Rows Disabled of Track even though it returned to one Track by the delete operation from the state where there was a child Track of multiple rows. As ...
Staging Directory in Project Packaging Settings should not be saved as absolute path
UE - Foundation - Data Pipeline - Cooker - Jun 8, 2021When you package a project via the editor, it updates the ProjectPackagingSettings to set the StagingDirectory to the specific one chosen by the user. However, it saves this path as an absolute path ...
Clicking the GameMode Override dropdown in the World Settings tab crashes the editor
Tools - Jun 25, 2015Clicking the GameMode Override dropdown in the World Settings tab crashes the editor. Also occurs with any of the sub-options for the GameMode. Does not appear to occur if there is not already an ex ...
[CrashReport] Deleting pins on Switch on Gameplay Tag Container node can cause a crash
UE - Gameplay - Blueprint Editor - Mar 15, 2017When adding/removing pins on a Switch on Gameplay Tag Container node, it can cause a crash. There are multiple ways to get this to happen when deleting pins, the order given in the reproduction step ...