Verified patch notes, affected platforms and developer-listed issues.

Satisfactory
1.2 Experimental Update - V1.2.2.0
Apr 28, 2026 · Steam update tracked by Buffs & Bugs
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Official note“<!DOCTYPE html> Steam :: Satisfactory :: 1.2 Experimental Update - V1.2.2.0 " ); }; Sign in Store Home Discovery Queue Wishlist Points Shop News Charts Community Home Discussions Workshop Market Broadcasts About…”
Patch-wide download / install changes may apply on this platform.
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Quick take
Hello again everyone, it’s been a while since the last patch but we have a lot of fixes coming in this time around, this should cover the majority of issues and crashes we’ve seen so far so hopefully this will make the 1.2 Experimental a lot more stable
- If the 1.2 Experience has gotten better or if we have introduced any new issues please let us know over at our QA Site https://questions.satisfactorygame.com/ Your posts are extremely helpful for us
- If you heard about the 1.2 Update on Experimental and are interested trying it out, you can do so by following the instructions below:
- And remember, you can BACKUP YOUR SAVE before trying it to avoid losing any of your progress
What officially changed
Hi Pioneers!
Hello again everyone, it’s been a while since the last patch but we have a lot of fixes coming in this time around, this should cover the majority of issues and crashes we’ve seen so far so hopefully this will make the 1.2 Experimental a lot more stable
If the 1.2 Experience has gotten better or if we have introduced any new issues please let us know over at our QA Site https://questions.satisfactorygame.com/ Your posts are extremely helpful for us
If you heard about the 1.2 Update on Experimental and are interested trying it out, you can do so by following the instructions below:
And remember, you can BACKUP YOUR SAVE before trying it to avoid losing any of your progress
You can backup your save & blueprints by copying the folders in:
%LocalAppData%\\FactoryGame\\Saved\\SaveGames\\-YOUR ID-
%LocalAppData%\\FactoryGame\\Saved\\SaveGames\\blueprints
To access the Experimental version on Steam:
Right click Satisfactory on your library > Properties > Game Versions & Betas > experimental
Then exit this menu and the experimental version will start downloading for you
To access the Experimental version on Epic:
In your Library, search for “Satisfactory Experimental” and install it, it’s a separate entry from the default version so you need to download it individually
See you all next time, thank you so much for your continuous support <3
BUG FIXES
Fixed rare Dedicated Server crash related to Conveyor lift and Pipeline connections
Fixed distorted audio which could happen when joining a session that has ongoing rain weather states
Fixed a crash related to Clients joining late game multiplayer sessions
Fixed custom map markers disappearing in some scenarios
Fixed custom map markers from old saves being wiped when being loaded into 1.2
Fixed crash due to path nodes having invalid connections when loading a save, either from save editing or invalid blueprints
Fixed performance degradation when dragging a long vehicle path segment
Fixed a crash on load related to incorrect SubObject properties which would result in a crash on load for some saves
Fixed previously opened Crash Sites that require Power to be opened respawning alongside their contents in 1.2
Fixed several crashes related to Railways that might have been preventing certain saves from being loaded
Fixed several Crashes related to Blueprint holograms
Crash fixes for issues when Dismantling in certain scenarios
Fixed FICSIT Material not being available in the Customizer
Fixed issues with hologram curvature for Conveyor Belts
Fixed issues with Conveyor Lift Splitters/Mergers, Removed step placement from lift attachments, so now it behaves the same as with belts, Logic for guideline snapping was changed to be similar to belts one. Which means - no snapping has occurred by default as it was before (except for endings). When pressing guideline snapping - it snaps vertically towards the guidelines
Fixed conveyor lifts not getting removed when using Blueprint mass dismantle
Fixed lifts snapped at certain angles having misalignments or other issues
Fixed incorrect UI prompts when interacting with a Portable Miner on a Crude Oil Node
Potential fix for Radiation persisting after sorting the inventory and then removing a radioactive resource from it
Fixed conveyor belt customization disappearing after using a Splitter or Merger
Fixed sometimes being granted additional hand and inventory slots when skipping the intro sequence which would later result in MAM/Hard Drive unlocks that interact with Hand or Inventory slots not working properly
Fixed previously built Railroad Switches not dismantling properly
Potential fix for stack sizes becoming 100 sometimes when they shouldn’t
Fixed invalid conveyor lift hologram setups that could be built by nudging
Fixed customizer pattern alignment issues on foundations
DEDICATED SERVER
Fixed Dedicated Server crashing when a specified port is out of range
Fix in Server API when a socket cannot be allocated
Fixed a crash on Dedicated Servers that don’t have local player controllers in the Sign subsystem
Fixed incorrect menus showing up for weather in the Dedicated Server settings
UI
Fixed issue where opening/closing the Hotbar radial menu with controller would cause the HUD to fade in and out
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