I found that if one starts the simulation from the tracker0 area, use the geometry 70, and constant_solenoid mode, it takes several minutes to simulate one spill.

This was confirmed by Durga. (Sorry for selling him out)

I believe the error can be reproduced with the geometry file and configuration data cards I attached. Please remember to change the directory and file path before running.

P.S. If anybody gets blamed you may use this issue tracker as a coupon to asking for a beer from me.

Best,
Ao