Unreal Engine Issues

Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor

Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor during PIE. NOTE: This issue occurs whether or not simulate physics is active on the destructible mesh compone ...

Missing material bake output index entry for mesh(section)

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 ...

Crash upon editing a GameplayTagQuery inside of a DataAsset

When a GameplayTagQuery variable is edited from inside of a DataAsset, the editor crashes when the changes are saved. This could be related to a bug that was fixed previously: [Link Removed] Regres ...

Using collapse to function on an event binding causes a crash when that function is referenced in another class

Collapsing an event binding to a function results in a function that takes in a delegate as an input. This function existing ends up causing any references to this blueprint class in another class t ...

Pasting a folder on the Outliner while LightMixer and ViewChanges windows are open/docked crashes the Editor

When both LightMixer and ViewChanges windows are open, pasting a folder into the Outliner crashes the editor. For more detailed steps, refer to the Steps To Reproduce section. This happens whenever ...

BP using nested child actor components in streaming level causes ensure condition failed

This never happens on ue5.0.0 The problem appears to be caused by a deleted PhysicsProxy being registered with Solver. Since the solver accesses the deleted PhysicsProxy, it may crash. Checking a ...

Changing particle system template via Blueprints crashes Editor and packaged game

Setting a ParticleSystem component in a Blueprint to none/null with a "Set Template" node causes the editor and the packaged project to crash. I have noticed this when migrating my game to 4.22, whi ...

Crash when quick binding a function in a class that extends LevelSequenceDirector

The purpose was to create a Level Sequence Director inheritance class so that the same event could be reused in multiple sequencers. Attempting to quick-bind this base Level Sequence Director event ...

Editor crashes on compile with no warning when trying to access information from a "Slot as Canvas Slot" node on tick that has not been set yet by begin play

If a user creates a widget variable that is set on begin play and then tries to get information from that widget via the "Slot as Canvas Slot" node on tick the editor will crash. This appears to hap ...