Robot takes stack on conveyor, but only the bottom one starts moving on conveyor. Tried with various Gravity direction values in Actions Configuration in the robot.
I don’t know how exactly the bundling works. You now need to play around with the gravity direction, make it bigger, and see if the stack is released to the conveyor.
Ideally, the stacked objects would already be bundled before the robot grasps them since such issues come from the multi grasping.