Unreal Engine Issues

Editor crashes when a floating window PIE command is issued repeatedly

After assigning Keyboard Shortcut for New Editor Window (PIE) as "F3" and returning to Viewport and selecting "F3" to open New Editor Window (PIE), continuing to repeatedly press F3 results in the e ...

Crash when changing details of an animation in an Animation Composite

This is a regression tested in //UE4/Release-4.27 CL#18319896 Fatal error is thrown and the Editor crashes when changing details of an animation in an Animation Composite. ...

Crash occurs when unmuting a user while Voice Chat and Network Replays are both active

User claims that crash occurs when a new user joins a session and the program attempts to unmute the existing players. This only occurs if Network Replays are active. Note: No reproduction has yet ...

Crash when changing shadow scalability settings to low, then clicking in the viewport

A crash occurs after setting the shadow scalabilty settings to "low" then clicking on an item in the viewport. The issue also occurs when setting all of the scalabilty settings to low at one time as ...

Editor crash when modifying Skeletal Animation Section of an unsaved additive animation

Unsaved animations can cause the editor to crash if they are in a sequence, if the sequence evaluates them after an edit.  ...

Float Curve that is set as a local variable in an actor's function is garbage collected when in Standalone, causing a crash

If a Curve Float local variable is created for a function, it will be garbage collected when garbage collection occurs. This causes the process to crash due to an null pointer error whenever it is r ...

Memory Leak caused by auto save files

Dedicated server crashes when running a multi-process game in standalone with the Code Editor plugin enabled

Attempting to run a standalone server and client using different processes will crash if the Code Editor plugin is enabled. ...

Remapping morph targets will crash if you have a cloth section

By calling FLODUtilities::SimplifySkeletalMeshLOD on a mesh with cloth sections that is set to remap morph targets, a crash occurs. This seems to be due to the indexing of sections with/without incl ...

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open Discovered when verifying [Link Removed] (also similar to [Link Remo ...