Was getting this message sporadically on Red today and now it’s just about constant. Entire image is on the print area. Put a simple gradient on a brand new file created from the red template and it immediately gets end of travel detected. Rebooted machine, no luck.
Seems to be momentarily resolved by unplugging and restarting the machine but given that it didn’t start happening until after some hours of use, I would expect it will happen again. I believe this is the recurring error that keeps getting reported.