Just wanted to add that I'm seeing very similar homing issues on coreXY as what @rainy sees. I just updated to 3.4.5 (from 3.4.0) and now when homing all axes the printer doesn't stop after it hits the endstop but instead starts stalling out the motors trying to push past the end. Works fine if I home the axes individually though.
I think my homeall macro is unchanged from what the RRF Config Tool generated.