Laser parameters all of a sudden not working

Today I was engraving with no issues and then all of a sudden it seemed like my parameters changed and when the laser when to home position it over shot and went beyond the bed and made a loud grinding noise. It grinds when I try to go all the way to the right and the back of the bed and it doesn’t go to the left or back of bed as far as it did but overshooting the right and front of the bed. What would do this? I checked my limit switches and they appear to be working fine.

Do you have a backup of your most recent settings for the ruida. I have seen mine do something similar. I have a lot of power problems in the neighborhood and i think the smallest glitch caused some issues with my config. Luckily i had a backup and now i got the machine on its own UPS.

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