Unreal Engine Issues

Crash during package save due to the async text mesh build in Text3D

Saving a package in the editor while there is a queued text mesh build will cause a fatal error because the build will execute during the save, and creating objects while saving is not allowed. This ...

Crash Generating Proxy Meshes after replacing static meshes in the level

Crash occurs when the user attempts to build HLOD after replacing the static meshes in the level with another set of static meshes. Couldn't reproduce this with just any mesh replacing the meshes. ...

Crash when attempting to merge two objects using Simplygon - ProxyMaterialUtilities::CreateProxyMaterialInstance

Engine crashes on completing a simplygon merge of two actors Note If you set On screen size to 50, you can speed up the merge to get to the crash quicker ...

[CrashReport] UE4Editor_OutputLog!SConsoleInputBox::OnKeyCharHandler() [soutputlog.cpp:710]

Comments from user:crashes when trying to type "dynamic" into the console tab I attempted the users repro in 4.19 Binary @ 3843120 and was unable to come up with a repro. ...

Crash using Oculus Hand Component

Using the Oculus Hand component in a blueprint pawn will cause the engine to crash. This occurs using the Native OpenXR with Oculus Vendor Extensions in the XR API. If the user switches to Legacy Oc ...

[CrashReport] UE4Editor_Slate!SMenuAnchor::SetIsOpen() [smenuanchor.cpp:372]

This is a trending crash coming out of the 4.18 release, and may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 361 ...

Crash Generating Proxy Mesh with Transition Screen Size set to 1

Crash occurs when attempting to Generate Proxy Meshes with Transition Screen Size set to 1. ...

Crash when importing the same Alembic file but as a different Asset Type

Crash when exiting PIE after execute demorec command

This issue is regression because it doesn't reproduce 4.18.3. Default level is just the level to move. Demorec level runs demorec command with beginplay and has one replicated variable. UEditorEn ...

Editor crashes after redoing the addition of a component to a static mesh actor

This is not a regression. This also occurs dating back to 4.15 and 4.14. The editor crashes on this check in FLevelEditorActionCallbacks::Paste_CanExecute() when updating the Edit menu state: chec ...