There's actually 2 different currents going on with a balance charge. The main one is how much current is provided to the pack as a whole through the main + and - terminals. The second is the balance current going through the balance connector. I think the charger only reports the main current.

If the 4010 is getting stuck balancing for an extended period then the pack is not healthy. What is the IR showing on the individual cells and what is the voltage per cell at the point it starts the CV part of the charge cycle?