atrm/compatibility/krastorio2/steel-pipe-range.lua:25: ATRM K2 steel pipe stack-size baseline drift: expected 50 or 100, got 500
stack traceback:
[C]: in function 'error'
atrm/compatibility/krastorio2/steel-pipe-range.lua:25: in main chunk
[C]: in function 'require'
atrm/core/loader.lua:25: in function 'load'
atrm/data-final-fixes.lua:12: in main chunk

https://mods.factorio.com/mod/Silicon?from=search

Thanks for the report. Confirmed: ATRM's K2 steel-pipe compatibility check is too strict and incorrectly rejects external stack-size overrides. I'll make it preserve the Stack Size mod's value instead of aborting.

Fixed in 2.9.12.

atrm now preserves stack-size changes made by other mods instead of failing the compatibility check.

I would still recommend the original SE/K2 stack sizes, since very large stacks can significantly affect logistics and progression balance. But this is a player-side balance choice, so atrm will no longer enforce its own reference value here.