Regarding crash

link text

Hello sir,
I am facing crash report while using unreal engine 4

Is this a BP only project? C++? What were you doing when the crash occurred? More information would be helpful… Thanks!

hello sir,
when I am using modular building plugin when I making undo these crash occurred .

Nothing else crashes? Well, I think you’ve found the culprit. Can you try the plugin on a different project? Or, even a different version of the editor? Sounds like you should do a bug report on the plugin?