Satisfactory 1.2 Experimental Hotfix v1.2.2.1 Notes (7th May 2026)
Coffee Stain has pushed a quick hotfix to Satisfactory's Experimental branch, targeting crashes and a handful of annoying bugs from the last update.
Coffee Stain didn't let the previous patch's mess sit over the weekend. v1.2.2.1 landed today on the Experimental branch, and it's a focused cleanup of the issues that slipped through last time.
The two biggest fixes are crash-related: a locomotive dismantling crash and a Rain Occlusion crash both get addressed here. The locomotive one in particular was nasty, since it could hit you mid-session with no obvious warning. There's also a fix for FICSIT Material disappearing from the build menu, which is the sort of missing UI bug that makes new players think they've done something wrong when the game is just broken. Rounding things out, a softlock triggered by falling out of bounds while in a vehicle is gone, and unpacked fluids now show correctly in the Train Station timetable filters.
Small patch, but the right instinct. Shipping a crash fix before the weekend rather than leaving Experimental players stranded for two days is exactly what good early-access communication looks like. The complete notes are below.
Full Patch Notes
Hi Pioneers!
Hello again everyone, today we have a hotfix for everyone using Experimental which should address most of the issues introduced in the previous patch
It’s extremely important for us to know if there are new issues introduced with this patch so if that is the case, please let us know over at our QA Site https://questions.satisfactorygame.com/ We read your posts every day
See you all next time and hope you have a great weekend <3
BUG FIXES
- Fixed crash when dismantling a locomotive
- Potential fix for Rain Occlusion crash
- Potential fix for FICSIT Material being missing from the build menu
- Fixed an issue were falling out of bounds while in a vehicle would result in a softlock
- Fixed Unpacked fluids not being shown in Train Station time table load/unload filter
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Written by
Nathan LeesGaming journalist and founder of XP Gained. Covering patch notes, breaking news, and updates across 160+ games.
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