Unreal Engine Issues

Crash when adding a Material Layer with a MaterialFunctionCall node to a Material Instance

Adding a Material Layer to a Material Instance that has a Material Function Call node connected to the Set Material Attributes node causes the editor to crash. I tested a Material Layer without the ...

Crash when committing level instances containing invalid child actor components

Editing parent emitters with mesh renderer in a niagara system causes crash

After editing the parent emitters of a Niagara system with mesh renderer particles the engine will crash the next time the editor and system are opened.  This was tested with both engine content cub ...

Dragging more than one Texture into the Material Editor causes a crash

Importing two or more Textures into the Material Editor results in a crash. This is a regression from 4.24.3 (CL-11590370) as well. This was reported and tested in 4.25 Preview 2 (CL-12055273) and ...

Crash compiling a blueprint after changing a Text variable to String, while the Details panel are visible

Crash occurs when the user changes a Text variable to a String while the Details panel is displaying its properties, and then compiling. Crash does not seem to occur if the Details are not visible. ...

Crash on setting Max. Texture Size with Non Power of 2 Texture

Also Reproduced in Main Promotable-CL-2479729 After importing and saving a texture which is non power of 2 and not an hdr texture, when you set the Maximum Texture Size in the Texture Editor's Comp ...

Crash upon selecting CameraComponent in Sequencer when level is locked

Selecting a Camera Component in the Sequencer window when the level is locked causes the Engine to crash.  This was reported and tested in 4.20.1 (CL-4233996). This was reproduced in 4.19.2 (CL-403 ...

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 ...

Getting Fullscreen or Windowed Resolutions doesn't fully execute on Linux

When using "Get Supported Fullscreen Resolutions" on UE when built with Vulkan, no values are printed out. This is an issue with any platform that builds UE with -vulkan, not just Linux.  In Engine ...

Ensure when restoring pre-animated state on Skeletal Mesh with Linked Anim Graph

Download and launch attached projectPIEPress the "E" key to play the sequenceWait until sequence finishes RESULT Ensure in FAnimInstanceProxy::GetSkeleton as a result of restore state calling Unbind ...