I’m having a similar issue as here. First time using DO so pls bear with me.
Current config is Taz 6 with Rambo board and modular bed. I have an E3DV6 toolhead mounted but this issue also occurs with the original toolhead w/ hexgon hotend.
I auto-home the printer and the y-axis doesn’t move back far enough so the z-axis homes into the corner washer. I’m currently working on the instructions in post #2 in above link and am back to V63 which hasn’t worked.