Unreal Engine Issues

Adding an LOD while in PIE or Simulate Cauases the Editor to Crash

If you add an LOD while the editor is simulating or playing, the Editor Crashes. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 6063286 ...

Automation Wait for Loading crashes standalone game

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

Opening a widget blueprint on Linux causes editor to crash

The editor crashes when attempting to open a widget blueprint. ...

Crash when AnimBlueprint and Bleuprint Interface has Same Name Function

When AnimBP and Blueprint Interface was added to the AnimBP has same name function, compiling AnimBP occur crash. ...

Crash when enabling Shader Complexity Viewmode

Material Editor Assertion Crash When Collapsing Material Attributes

Collapsed material attribute nodes cause an editor assertion crash in the material editor when viewed or opened. Assertion failed: (Index >= 0) & (Index < ArrayNum): Array index out of bounds: 0 fr ...

Crash occurs while attempted to drag and drop an asset from Bridge while it is docked to the Sidebar

An Assertion is thrown while attempting to drag and drop an asset from Bridge while it is docked to the Sidebar ...

Crash When Setting a Bool in a Niagara Parameter Collection via Blueprint

The Editor will crash when setting a bool in a Niagara Parameter Collection via Blueprint. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5159901, 4.23 CL# 5194133 ...

Crash when using the Blueprint merge tool

The Editor crashes when merging a change using the Blueprint Merge tool on Linux.  ...

Crashes occur when executing MRQ while adding UMG with RetainerBox.

Create an asset containing a RetainerBox in UMG, then add the created UMG to the viewport using AddViewport. Running MRQ after this causes a crash. ...