Endless load on Steam session

Hi there! My friend and I had been playing on a modded session for a long while and it sporadically has started to not allow the secondary player to load into the world, instead leaving them stuck on an infinite loading screen. We've both taken the same save file and tried being the host and it will always allow the host to launch in, but the joining player will be trapped on the loading screen. We're using Multiplayer Host & Play through Steam! I've attached the .smmprofile and the debug zip as for some reason SMM wouldn't allow me to copy the list of mods.
6 Replies
FICSIT-Fred
FICSIT-Fred3mo ago
SMM Version: 3.0.3
SML Version: 3.11.3
Installed Mods: 63
Game: WindowsClient CL 433351 from steam
Path: `c:\Program Files (x86)\Steam\steamapps\common\Satisfactory`
Command Line: cmd /C start steam://rungameid/526870-NO_EOS_OVERLAY -directx12
SMM Version: 3.0.3
SML Version: 3.11.3
Installed Mods: 63
Game: WindowsClient CL 433351 from steam
Path: `c:\Program Files (x86)\Steam\steamapps\common\Satisfactory`
Command Line: cmd /C start steam://rungameid/526870-NO_EOS_OVERLAY -directx12
-# Responding to Key Details for SMMDebug-2025-09-21-01-46-01.zip triggered by @AryaTheElf
sjhoward
sjhoward3mo ago
>debugmods
FICSIT-Fred
FICSIT-Fred3mo ago
Follow this flowchart to troubleshoot issues caused by mods (crashes, unexpected behavior, etc.). More information can be found on the docs: https://docs.ficsit.app/satisfactory-modding/latest/faq.html#_how_can_i_troubleshoot_crash_issues
AryaTheElf
AryaTheElfOP3mo ago
We've just tried this and it continues to be an issue, unfortunately. We can load in on a fresh world just fine, but on our existing save, it just sits on a constant loading screen
sjhoward
sjhoward3mo ago
>scimrinse Ok, not an active mod issue then - this might be worth a go
FICSIT-Fred
FICSIT-Fred3mo ago
Certain issues in save files can sometimes be fixed by running your save through the interactive map. First, find your save file by pasting %LOCALAPPDATA%\FactoryGame\Saved\SaveGames into Windows Explorer. Then, open Satisfactory Calculator's Interactive Map, upload and download your save as shown below, and move the resulting _CALCULATOR.sav file back into your save game folder. Load it up, and hope for the best!
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