Yes, only the bucket dump/curl circuit goes into regen mode. In my case, I put a bolt in place to limit how far the lever can move so that it cant go into regen mode as I dont have a loader on that tractor, the blower is about the only thing that goes on the front and as such, I dont need regen.I tried it with my diverter valves from the loader, they go to 4&5th service. I thought only the bucket went to regen mode and I switched it off. I also swapped them to the raise lower circuit, no change. I then switched it to the 3rd service electric hydraulic switch on the loader handle. All the same results.
How did you cure your problem?