Unreal Engine Issues

Crash Occurs When Duplicating Static Mesh with Foliage Placed on it

When duplicating an actor that has foliage placed on it (i.e. the table in the basic level with starter content), the editor will crash. Found in 4.11 Preview 7. Reproduced in Main CL 2894512 Thi ...

Assert in EditorEngine.cpp after HotReload

This occurred when I tried to repro an ensure and crash the resulted in [Link Removed]. In the crash group on the Crashreport website I noticed that KimK had the same callstack as this one. She wrot ...

Using CTRL+W to duplicate multiple components of an actor at once trips an assert

Attempting to duplicate multiple child components results in an assert being thrown.  ...

Playing a Haptic Soundwave will crash the editor

If pasting a section causes an overlap, don't allow it if the track doesn't allow overlapping sections

Binding lifetime sections aren't meant to overlap, but duplicating one, or pasting one can cause them to overlap, triggering an ensure. Duplication and copying and pasting are typical actions, so th ...

[CrashReport]UnrealEditor-Chaos!Chaos::FPhysicsSolverBase::GetExternalDataLock_External() [PhysicsSolverBase.h:677]

Generated from CrashReporter ...

Editor crash when calling SGridPanel::SetRowFill

Calling SGridPanel::SetRowFill on an actor's BeginPlay causes the editor to crash with the callstack provided The reporter mentioned SetRowFill uses if() statement where SetColumnFill uses while() ...

Unreal 4.26 Crashes when playtesting with a groom in the scene

When you hit play with a groom in the scene, the engine crashes Additional notes: First tried adding it to a skeletal mesh through a character blueprint. Engine crashes. Engine doesn't crash if pla ...

Importing Camera FBX into a sequence can crash with a headless editor

In a headless editor instance we will not be able to send toasts to the user, and we should not notify slate. The Sequencer Tools function library calls MovieSceneToolHelpers::ImportFBXCameraToExist ...

Crash converting code project 4.7 to 4.8 ; Array index out of Bounds

Some users are experiencing a crash when converting their project from 4.7 to 4.8. From user reports it appears to be affecting those who have added code to their projects and created blueprints bas ...