For those who are stuck with the first problem: If your print sticks to the surface (not as with ops setup) this can be also caused by a loose hotend/nozzle. Such dug-in-marks indicate the nozzle was lower than it should be.
That can happen when using a hotend that thightens by screwing in the nozzle. If you screw it in cold and use too less torque the heat expansion leads to a loose connection, allowing the nozzle-heatblock- or heatblock-coldend-connection to unscrew it enough to cause this.
For those who are stuck with the first problem: If your print sticks to the surface (not as with ops setup) this can be also caused by a loose hotend/nozzle. Such dug-in-marks indicate the nozzle was lower than it should be. That can happen when using a hotend that thightens by screwing in the nozzle. If you screw it in cold and use too less torque the heat expansion leads to a loose connection, allowing the nozzle-heatblock- or heatblock-coldend-connection to unscrew it enough to cause this.