It it possible that mod causes belts tug? It helps when i reinstall warehouse mod and it works for a while, but can start again any moment and my characters make same thing. I have this mods too: better-recycling_1.0.1, large-storage-tank_1.2.1, longer-belts-redux_2.0.0, VehicleSnap_2.0.1

Not sure what Belts tug is .. however, Warehousing contains no custom code, only native entities, it does not try and do anything extra with code, so can definitively say it's not our mod

for anything that makes betls weird, maybe longer belts, but i would assume they're also doing native things without the need for custom code

I don't know what is the correct word, is it jerk? but belt almost stop and roll again and stop and roll again, but not stop fully.