SKR_Pro Random issue of slow motor movements until reboot

Just got everything up and running, and so far so good on all fronts… Homing works good, and good test print of the Crown… However, I have randomly had all motion slow down to sloth speed for no understandable reason. This has happened while simply moving the gantry around with the Move Icon on the screen, and while printing of the crown… having seen the speed of motion that should occur during printing of the crown on this rig prior, and during 10mm movements per increment of the knob on the LCD screen, I would estimate that all motion slows down by a factor of 10 or so… insanely slow. The only solution I’ve found is to power cycle the SKR Pro and this instantly fixes it- printing the same file, or moving the gantry…

Any ideas??

I am running Marlin_V1CNC_SkrPro_Dual_2209_2.0.7.2_510 with the BIGTREE_TFT35_V3.0_E3.26.x.bin from this site customized to CNC only use.

The move commands may not include speed. Maybe one of the other commands (Z, perhaps), slowed it down. Try sending G1 F600 in the terminal and then see if that speeds it up.

This is probably not the solution but I had a Rambo board do something similar at one point the problem turned out to be the stepper driver chips getting to hot. If fixed it by adding a fan to the controller box.