Failed to load mods: __core__/lualib/dataloader.lua:23: Invalid array of prototypes:

{}
stack traceback:
    [C]: in function 'error'
    __core__/lualib/dataloader.lua:23: in function 'extend'
    __rigor-module__/data-final-fixes.lua:908: in main chunk

data:extend(new_machines) is called without checking if it's not empty, which can happen if other mods already converted furnaces to assembling-machines

Thanks for reporting, and for figuring out the exact cause! I'll get this fixed.

Fixed with v1.1.2.