RePan and Synthetic Overclocking Crash
For some reason the game crashes upon loading a save if using the latest version of SynthO (1.0 is fine), and RePan. No idea why, last I checked RePan doesn't have a Power Shard recipe.
53 Replies
@AniMouse
@McGalleon
good question. No clue what would cause that
crash report might help
Any chance where that might be on a Steam Deck?
Found it, I think
Blueprint /SyntheticOverclocking/RootGameWorld_SyntheticOverclocking, owned by SyntheticOverclocking, is accessing CDO of class /Game/FactoryGame/Resource/Parts/IronPlateReinforced/Desc_IronPlateReinforced.Desc_IronPlateReinforced_C, owned by FactoryGame
the log is spammed with lines like this
Syth Overclocking is accessing a ton of stuff for some reason
but i feel like that doesnt really do anything much
2025.07.07-21.33.13:781][668]LogWindows: Error: appError called: Assertion failed: Class [File:C:\SML\SML\Mods\SML\Source\SML\Public\Reflection\BlueprintReflectionLibrary.h] [Line: 143] GetClassDefaultObject: received NULL class
thats the last line before the crash / leading to the crash
whatever was happening, SyntheticOverclocking was trying to access basically every single CDO and then failed when one of them was NULL.
thats what the logs make it look likeCould it be related to how its supposed to automatically replace the shards in modded recipes with its own?
I'll add extra validation when working on multiplayer fixes
Though I wonder why it suddenly died on trying to access the base game recipe
Hopefully now everything is fixed
Fraid not
It has been attached to this message.
-# Responding to
Crash found in FactoryGame.log
triggered by @Minnie MouseI did add validation, and transferred all logic into subsystem actor, no solid idea of exact reasons why exactly this happens. I'll install repan and check if it's even related to this mod
I mean, seeing as the crash pops up with both of them installed, and it seems to be related to SynthO trying to access recipes, maybe its having issues with how Repan adds recipes? I know TFIT does
Recipes or schematics. I don't see why would it somehow retrieve null. The issue could be some mod that removes slug recipes
But I don't think that it's how it works, assets aren't exactly getting deleted
Maybe it's a contentlib issue
I will be investigating it
Do we know any other recipe adding mod that use ContentLib?
I have AniPack tweaks which alters a recipe, no issues
Well, again, gonna figure it out
Does it happen upon starting a new game?
On loading on old save it crashes, I'll try just making a new game though
That would narrow a list of possible issues
At leaast the final error looks different?
It has been attached to this message.
-# Responding to
Crash found in FactoryGame.log
triggered by @Minnie Mouse:NOOOO:
The tables have been turned, now its the code being a brat instead of the coder
Okay. Try disabling Better Overclocking mod
The most potential culprit as of now since overclocking widget is altered by my mod

Uh
Sorry, I was trying to say its still crashing
Same crash
IT CRASHED WITHOUT REPAN
I'm sure it's not repan
Better Overclocking was my best guess
Now to figure out which mod I installed right after it
Any mod which involves Overclocking might be the main issue
Do you think Simple Planner might be doing it?
It's buildable doesn't have a recipe
Nevermind
As far as I understand, I don't think so
I'd aim towards checking mods in alphabetical order
Also, in this guide every mod which is not in extra category is working fine https://ficsit.app/guide/2NThZriST6QUKi
Didn't realize the lithium mod was your work
Okay two other options - Cartograph and Digby Tool
Nope
My only other guess for now is Grappling Hook in that case
Or Architecture+ 2
Somehow, that worked
Okay, seems like it's an issue on modder's side, they could have accidentally register a null value
I will push an extra check for null, though the problem needs to get addressed
Cuz the same will repeat for mods which check all registered recipes
@Jean Michel We've found a small issue you might wanna look at
Or schematics
Mice have dug out the root of troubles
Would be a good idea to throw a note on the mod for now explaining the incompatibility, least till it gets fixed
Yeah, right
I'm going to push the update in a few hours and will leave a note
I'm honestly annoyed with myself, I saw where the game was dying, and I was like, "hey, that's in the middle of architectury, but i doubt its that, it doesn't add recipes"
It's a human factor tbh, this had to happen to someone eventually
Went looking for zebras instead of horses
Nah I tried to be logical too, and as it turned out it's not exactly the issue with Synthetic Overclocking mod. The same would happen with any mod which goes through all recipes to alter them
Or schematics. Milestones, researchers etc
I mean, most mods that alter a recipe know which recipe to change, it was the fact that your mod didn't know and had to look for them, that revealed the issue
Yep
I would love for more mods to use that idea, auto compatibility would be sweet for stuff like SF+
Does the crash occur when only Architecture + 02 is installed?
I mean, it functions by itself just fine, but if any mod tries scanning recipes, like SynthO, it crashes
In short, you seem to register a null schematic or have an invalid recipe in the mod
Glad to hear i didnt break anything ðŸ¤
Exactly!
The last recipe was empty.
Fixed and online.
Is the problem solved?
Sorry
works on my device now :thumbtel: