Model View Viewmodel: Source was evaluated to be invalid at initialization.
Trying to build a Blueprint for my Modular Power, a MKII of the Steam Turbines for Refined Power, but the damn game keeps crashing after a few minutes, I can't save either otherwise the game crashes.
Solution:Jump to solution
From what I can see from those crash logs its
FactoryGameEGS-FactoryGame-Win64-Shipping.dll!AFGPipeNetwork::PreSaveGame_Implementation() [C:\BuildAgent2\work\9fc8da665efb5ffd\UE4\FactoryGame\Source\FactoryGame\Private\FGPipeNetwork.cpp:216]
Meaning that something from the pipe system is crashing.
I once had that when building blueprints and its pretty nasty.
Considering you are building blueprints here as well I can only recommend the following:
Either load a save from before you started the blueprint, or try removing all blueprinters and their contents from the map via SCIM (that one worked for me). ...8 Replies
-# Responding to
Key Details for SMMDebug-2024-12-26-06-17-37.zip triggered by @Aevee, the Memory LeakerWow, first time he's responded to me. That's incredible.
Didn't realise just how many mods I have installed.
Here's the errors, it ends with 4
LogBlueprintUserMessages errors.Here's the latest update, just got back from holidays, tried it again and it gave the same error.
-# Responding to
Key Details for SMMDebug-2025-01-04-02-32-55.zip triggered by @Aevee, the Memory LeakerAfter loading a previous save, then saving a couple of times, it worked fine, but once the save reached 51h 20m apx, the game suddenly decided that some variables were invalid and crashed, regardless of what I do, once I attempt to save(auto save or not) it crashes with
Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff
This is the second save where I've put in 50+ hours only for it to suddenly stop working, and the moment I decide to bite the bullet and make a new save, someone will figure out it was a simple solution and have it fixed, as per usual.
Day 3 of ensuring this doesn't get buried by other people.Solution
From what I can see from those crash logs its
FactoryGameEGS-FactoryGame-Win64-Shipping.dll!AFGPipeNetwork::PreSaveGame_Implementation() [C:\BuildAgent2\work\9fc8da665efb5ffd\UE4\FactoryGame\Source\FactoryGame\Private\FGPipeNetwork.cpp:216]
Meaning that something from the pipe system is crashing.
I once had that when building blueprints and its pretty nasty.
Considering you are building blueprints here as well I can only recommend the following:
Either load a save from before you started the blueprint, or try removing all blueprinters and their contents from the map via SCIM (that one worked for me).
Once that is done and you have a working save, you may need to check all your blueprints with pipes for corruption (placing one and trying to save) and delete if necessary. (as huge BPs with many pipes can cause this error as well)
Also, never use the Efficiency Checker in blueprints. Even just building one and then removing it can cause this error.
This only accounts for the blueprint stuff though, no idea why it crashes after a specific time played though.
Also I have those "Model View Viewmodel" errors as logspam as well, but that's not what's causing the crash here.Only 1 Blueprint I made personally, a Modular Steam Burner that automatically connects to each other... I'm guessing that's the cause, all the other blueprints were designed by other people, and have been fine in other saves.
That's done it, it was my modular Steam Burners. Redone the design so they don't automatically connect, I'll have to do that manually.