"Executing PCG Tasks 0/X" and freezing my UE5

Development Programming & Scripting Blueprint
, , , , ,
1

Hello,

This is my first time asking for help here, I’m kind of a newbie to Unreal Engine.

I am going to start with my UE experience so you know what I can understand or not.

I recently found out about Tech Artists and the job they make so I wanted to get into it myself.
For a project I did some sand clouds, disorting portal effect and heat waves. Those were pretty easy with tutorials.

But one thing I really wanted to try was procedural stuff to ease the Level Artists’ job. And I found two really cool videos about making a procedural road!

I started with this one: https://youtu.be/FRwKHmLb-iA?si=rQB5aks5_SKYHm2r
And everything worked perfectly.

Then I started with the second video: https://www.youtube.com/watch?v=0DRaBJYQF7o
It was fine until…

My issue came in.

I am around 1h into the video (57:45 to be precise), I go to add a Branch node and :sparkles: poof :sparkles: Unreal Freezes. I wait a bit and search for solutions on Internet and nothing seems to explain my issue.

So I force close Unreal, restart it, same issue.

Restart computer, same issue.

Try to add a branch on another PCG graph, same issue.

I found out that we can pause the generation while programming. So I pause it and I can add a few nodes. But I need to unpause it to check if everything works! Same Issue.

This time I let it turn because I noticed a “Executing PCG Tasks 0/13” not moving. So I went searching for more and while I was writing this (maybe 10 minutes after the freeze) I notice it crashed.

So here is what it says :

Fatal error: [File:D:\build++UE5\Sync\Engine\Source\Runtime\Core\Private\GenericPlatform\GenericPlatformMemory.cpp] [Line: 263]
Ran out of memory allocating 53242365312 (50775.9 MiB) bytes with alignment 16. Last error msg: Le fichier de pagination est insuffisant pour terminer cette opération..

UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_PCG
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

It seems to have run out of memory but how do I change that?
My computer has 32Go RAM

The French line “Le fichier de pagination est insuffisant pour terminer cette opération..” means “
The paging file is insufficient to complete this operation.”

Could there be any other reason for the freeze?

Please explain it to me as if I’m a 3-years-old, I am still learning how all of this works.

Thanks you if you do help me, I will keep searching if I find anything.