M4 V88 Home not working & release tension runs away one belt

Home not working, not sure if not saving home position or M4 won’t return to home position when click on icon. Is it possible to display home position when machine starts or it is changed?
Need to release tension in order to remove belts when packing up. One belt (Top Right) kept on running belt out until I pulled power.

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I’ve seen this bug too and I’m working on a fix for that one.

This one I can’t replicate. Does it happen every time?