Got everything assembled and am going through the commissioning steps. I've checked all the connections and have tightened and tugged on all screwed connections. I pressed down on all the connectors to make sure they are snug on the Rumba. So I'm a bit perplexed by what is happening. In the commissioning, I've tried to set the Z offset but I don't have this option in the Control, Motion menu. Despite this, I set the position of the end stops and proper positioning of the IR sensor and get consistent and reliable auto homing. I even leveled the bed manually by setting the spacer heights. So I can get away without auto level. But when I go to auto level, the carriage travels to the six different positions and I have to manually dial in the offsets. It seems this should be done with the IR sensor but it doesn't. If I leave the printer on long enough eventually I get a MinTemp error. All the temps are 0°C on the info page. I suspect something is fundamentally wrong that leads to all these issues. Any advice would be much appreciated.