How to Fix a Create: Above and Beyond Server That Keeps Crashing
Create: Above and Beyond crashes are usually one of a handful of known causes — too little RAM for continuous Create automation, a large contraption desyncing across a chunk boundary, or a Forge version mismatch. See the Create: Above and Beyond pack page page for boot-tested RAM numbers.
Too little RAM for continuous Create automation
Nearly every recipe runs through a Create contraption, meaning constant kinetic and mechanical processing across the server; the pack's own recommended floor is 6 GB. Fix: run at least 6 GB, more as contraption chains get bigger.
A large contraption crossing a chunk boundary
Create contraptions that move across unloaded chunk edges can desync or throw on reload — a known category of Create-related crash, not specific to this pack alone. Fix: keep large or critical contraptions within a single commonly-loaded chunk area where practical, and avoid parking a moving contraption exactly on a chunk edge when logging off.
Forge version mismatch
Create: Above and Beyond pins a specific Forge build; running a different one breaks Create's lower-level block and entity hooks. Fix: match Forge to the exact version the modpack specifies — downgrading Create itself is not a safe fix, since Create's server-side behavior is tightly version-locked and a downgrade breaks world compatibility going forward.
Out-of-memory during a large contraption assembly
Assembling or disassembling a big Create structure places or removes many blocks in a short window, spiking memory. Fix: add RAM headroom proportional to your largest contraption, not just player count.
Corrupted world save from an ungraceful shutdown
A hard kill mid-save, especially while a contraption is actively moving, risks corrupting that structure's data. Fix: let moving contraptions come to rest before a planned shutdown when possible, always graceful-stop, restore from backup if it happens.
Conflicting addon mod version
Create addon mods bundled in the pack are tightly version-matched to the base Create build; a manually updated addon can throw dependency errors. Fix: update the whole pack together, not a single addon mod.
FAQ
What's the minimum RAM for Create: Above and Beyond?+
Can a Create contraption actually crash the server?+
Is downgrading Create a safe fix for a crash?+
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