I have tested all that.
The only wires on are those for power, (named VIN, BED and HEAT on the board) and, of course, the lcd.
I also reflash it, this morning, with the firmware you released yesterday. Whatever I do, I have the "TMC connection error" message and X axis is wrong. 10mm asked on lcd gives a 20mm move. Wich gives a wrong and dangerous auto home... as it travel 2 times needed....
(I was software tester in a past life, I'm used to test and retest in differents ways before asking the tech support ;-) )