Homing issues

[Stolowma]

My E3 Pro with a SKR Mini E3 V3 board has suddenly started having a problem with homing the X & Y axis. I printed a week or so ago and it worked fine, turned it on the other day and can't get past the auto home sequence. The X if you home it individually works as it should but with auto home it moves over until it clicks the stop switch, moves away as usual, then moves back into the switch and the servo keeps running until you shut the printer off. I checked the switch and even though it seemed OK I replaced it but didn't solve the issue.  The Y goes to home, hits the switch and keeps going until you shut it off. The Z seems OK but I only tried it a few times because I'm worried about damaging something. Resetting the EEPROM to factory defaults also did nothing.
I'm stumped as to where even start looking.
 

[BIQU info]

Hi, if you have any using problems. Please feel free to contact our technicians by submiting a ticket. They will settle down your problem soon. Here is the link:

https://biqu3d.com/pages/submit-a-ticket