Completed building an Openbuilds LEAD 1010 with xPRO V4 controller and working fine with no issues. I've only run a few jobs of 10 minutes or so and noticed the motors were warm when just on and idling. I didn't see anything about setting motor current on the xPRO V4 but the V3 wiki has a procedure to set. Any need to check or set the motor current on the xPRO V4? I have equipment to check if there is a procedure.
Stepper motors do, and should, get warm. Just not warm enough to cause damage (melting plastic insulation etc)