IKEA Behjälplig (Behjalplig) is the only solution to install non-IKEA dishwasher into IKEA METOD kitchen cabinet, but unfortunately this thing will snap/break very easily almost weekly.

This part prevents bottom part to snap from the hinge, locking it in place. Just print 2 of these and slide them over the hinge.

Don't forget to also print coldmake's hinge file — this thing is more durable than original: https://www.thingiverse.com/thing:2791193