Crashed by "Assertion failed" with packaged game ".exe"

[hikingyoung]

After packaged, Every time I quit the game, either BP node "Quit Game" or console command "exit", the game will pop up an error window as below:

It's not caused by my code or any other logic because I test it with an almost "empty" ue4.26 project and crashed as well.
Map: default level. (from file ->new level ->Default)
Actor: Basic actor with a node component inside, the component runs a script that has only 1 line js code:

Console.log("hello world")

UE4 level outline

My js script

Inside the BP actor

Runs Ok within UE4 editor

**After packaged, I run the .exe ** , then pop up a crash error windows as mentioned firstly above.
I think something caused Memory Leak, and I tried to figure it out.
After serveral days flew away (I first noticed this on August 3rd), now I know I can never do it.
Can you spare some time to help me ?
Hope your reply and any help will be highly appreciated.
Thank you again.
You Sincerely.

[Sakikonn]

@getnamo @hikingyoung
In NodeCmd.cpp

void FNodeCmd::StopMainScript()
{
	if (bIsMainRunning)
	{
		/*FCULambdaRunnable::RunLambdaOnBackGroundThread([this]
		{
			StopMainScriptSync();
		});*/

		StopMainScriptSync();
	}
}

I modified it,
It might be because of this asynchronous,
It doesn't crash now,
I don’t know what effect this modification will have
But now it will not crash after packaging,
I guess it may be caused by the callback.
My English is not good, I don’t know if this explanation is correct.