atrm/modules/wastewater/contracts/progression.lua:161: ATRM Wastewater progression contract failed:
private wastewater category leaked to unexpected machine(s): assembling-machine/umr_crafting_entity_2, assembling-machine/umr_crafting_entity_2-grounded, assembling-machine/umr_crafting_entity_2-grounded-spaced, assembling-machine/umr_crafting_entity_2-spaced, assembling-machine/umr_crafting_entity_2-spaced-grounded
stack traceback:
[C]: in function 'error'
atrm/modules/wastewater/contracts/progression.lua:161: in main chunk
[C]: in function 'require'
atrm/core/loader.lua:24: in function 'load'
atrm/data-final-fixes.lua:12: in main chunk

Hi pxq001,

Thanks for the detailed error report! This is actually quite helpful in identifying the possible conflict.

The umr_crafting machine names suggest that you're using UMR: Ultimate Modular Reactor Fixed, which introduces additional high-performance crafting machines.

ATRM has a dedicated wastewater processing category that is intended to be restricted to specific machines. According to your error message, some UMR machines appear to have access to this category, triggering one of ATRM's internal compatibility checks.

Unfortunately, UMR is not part of our currently supported and tested configurations, which are Vanilla, Space Age, Krastorio 2, Space Exploration, and K2SE.

I'm happy to investigate this, but could you please confirm which UMR version you're using? A complete mod list with versions would also be very helpful.

The issue looks relatively specific, but I would still need to check whether a possible fix affects other crafting categories or introduces unintended interactions.

Please understand that investigating additional mod combinations may take some time, and I can't promise a quick fix or full compatibility at this stage.

Thanks again for reporting this and providing such useful error details!

MoSII2710