Unreal Engine Issues

Struct with a single unaltered element will remove the element from the struct on compile

If used inside a UMG Blueprint, a struct that has only one element will remove the element from the struct after compiling the blueprint. If the element is edited or a second element is added then ...

The frame rate could be locked to around 45 occasionally on 90Hz android device.

Blueprints not marked dirty when variables in referenced actors are renamed

Blueprints using renamed variable do not indicate that they need to be recompiled. (However errors are shown on play) It is possible to not see an error if you add a variable with the same name as ...

UE-47779 - Crash exiting packaged PlatformerGame while in the Main Menu

This was occurring when I quit via the Quit button in the Main Menu GUI. I also repro'd this using the "Quit" command in the console. I found this on Linux, but this was repro'd on Mac and Windows ...

Crash opening Infiltrator packaged on Windows for Linux

This occurred on packages that were created on different Windows machines. This crash is not occurring on other platforms during our Samples Pass. ...

Crash on clicking Column Header in visRT window

The Engine will crash when you run the visRT command in Editor and click on an item in the visRT window and the click on a column header. also Reproduced in Main Promotable-CL-2513846 [Link Remove ...

BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.

Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...

Loading Duplicated Level via Python API Crashes Editor

When called from Python, in 5.1 the load level invocation results in a kernel panic style crash of the editor, with a message about the map leaking memory and not being able to be garbage collected ...

Importing a New Substance Preset will crash the engine

With the Substance plugin installed and when you try to import new preset data into the Substance Graph Instance, the engine will crash ...

Crash on inputting Scalar Value in Grass Material Node

Crash occurs when inputting a Scalar Parameter into the New to 4,8 Grass Node. Also reproduced in Main Promotable-CL-2535351 ...