My K1 max has started doing this. It prints the first couple of layers (I think 2?) normally, and then suddenly shoots sideways and prints the next layers offset. It does this whether it’s a model I made in CAD, or a downloaded STL It’s always offset to the left when looking from the front.
I’ve installed a CFS-C and upgraded the firmware, but this didn’t start happening until a few weeks after I did that.