I think the difference might be you are actively pausing the printer to change filament. When a filament runs out sometimes the printer doesn’t really understand what happened and it thinks there’s a bigger error and canceling the screen notification is not good enough to take back control. It’s really not just a TPU loading issue… it’s an error in print issue that it doesn’t understand then it gets stupid and you can’t get back enough control to set the nozzle temp or run the extruder. It’s locked out until it’s happy about the error that it has mis identified.
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