I have a rumba that is having troubles printing. I am able to start prints but sometimes it will just stop printing in the middle of a print and I have to restart the print to get it working again. I know that it is not the stepper motors overheating and I have already switched out the USB cable without any luck. I am communicating using the fastest baud setting (250000 or whatever it is). Has anyone run into this? When the print stops, the motors are still engaged but if you wait long enough they losen up. Pressing start and stop in the cura software (in os x) does not make it restart. I am running the latest version of marlin on a mendel max 2.0. I heard someone discussing on a mendel max forum that it is possibly an issue with the bootloader, but I do not have knowledge of that sort of thing. I am sometimes able to complete small prints but larger prints totally stall at some point and it is not reproducible where it stalls if I restart it but it likely still does.