Unreal Engine Issues

Creating a Blueprintable Struct that contains a Tmap results in Editor Crash

Any blueprint with a TArray of a struct containing a TMap crashes the editor when adding elements ...

Niagara Parameter Collection Overrides aren't working

Parameter collection overrides defined in the Niagara system's System Properties do not work. In FNiagaraSystemSimulation::GetParameterCollectionInstance the return value of GetParameterCollectionO ...

Panorama plugin for Movie Render Queue renders black images

Regression: Tested in UE5/Release-5.0, and the issue does not occur, so regression is yes This issue also occurs when you set "Enable alpha channel support in post processing (experimental)" to "Al ...

AI Move To Location zeros velocity each call, causing the AI Pawn to freeze if told to move again before reaching destination

AI Move To Location causes AI to lose velocity each time it is called, resulting in a freeze in movement on each call. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.0 (CL 3106830) Funct ...

Orientation Warping is rotating the mesh incorrectly on listen servers

See UDN for details: [Link Removed] ...

Crash Occurs on Exiting Standalone After Using DemoPlay

Using Execute Console Command nodes to record and play back a demo is causing a crash in standalone. Using the console commands themselves does not seem to cause the same crash to occur. ...

Creating Widget at run time with an exposed variable causes Engine crash with Assertion

If you are using the default values of the In Size the project will run fine, but changing the values will make the engine crash. This was reported and tested in 4.25 (CL-13144385) and reproduced i ...

Crash when using EditConditionHides with a struct in an array

A crash can occur in FStructurePropertyNode::GetValuePtrOfInstance when using EditConditionHides with arrays of structs. When deleting an element from the array, ParentBaseAddress will be null. ...

Client is unable to Server Travel with the host when Seamless Travel is disabled

Client is unable to Server Travel with the host when Seamless Travel is disabled. Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the client is able to join in, it is a regress ...

Layered blend per bone node with blend mask setting in an animation BP will not work after restarting UE editor, until recompiling the anim BP manually.