Unreal Engine Issues

Crash on Adding Elements to Array On Instance of Actor in the Level

When attempting to add an array element to an array that exists on a component contained within an actor that is instanced in the level, the editor will crash. This does not occur if an array elemen ...

Intermittent Crash using Rewind Debugger in Game Animation Sample

Licensee is reporting an intermittent crash when using the rewind debugger in the Game Anim Sample. ...

Editor crashes when calling a "scroll into view" node with missing parameters

There is an issue where Editor crashes when calling a "scroll into view" node with missing parameters. This issue should be caught when compiling the blueprint as one of the values should not be nul ...

UObjects returned from "Get Item Children" in a TreeView widget causes an engine crash, due to invalid pointers

UObjects returned from "Get Item Children" in a TreeView widget causes an engine crash, due to invalid pointers. User has proposed the following fix: The best fix is probably such: When Slate list ...

Crash when duplicating an asset before renaming it in the Content Browser

If you duplicate an asset in the Content Browser before the renaming box prompts input it will cause the Editor to crash. This was reported and tested in 4.20.3 (CL-4369336). This is reproducible ...

Adding a widget to a grid panel inside the grid panel tick can cause an out-of-bounds error

This is caused by adding an item to a grid panel inside the grid panel iteration loop. The same operation to canvas panel goes well without any errors. The difference is that the array iteration in ...

Editor crash when searching in Add Object menu after creating a Niagara System asset in the Motion Design editor mode

Crash when using AActor::Rename to change the Outer of an actor to a SubLevel

Using AActor::Rename to change the Outer of an actor to a SubLevel will cause the editor to crash when the AActor is shown in the World Outliner. Regression?: Yes This does not happen in 4.18 but ...

[CrashReport] FGraphActionNode::~FGraphActionNode()

This is a trending crash coming out of the 4.18 Previews. User Descriptionstrying to use media framework in mpseemingly random crashes, mostly when interacting with blueprint editorctrl drag float ...

[CrashReport] UE4Editor_ContentBrowser!SAssetView::AssetRenameBegin() [sassetview.cpp:3956]

This is a common crash that has occurred since at least 4.17. Users have not provided any descriptions about their actions when the crash occurred. Source Context 3952 void SAssetView::Ass ...