There are numerous different iterations of Movento. Some have soft close, some have tip-on push to open and some have both. Depending on the width of the drawer and the type of mechanism, the two sides may need to be synchronised with a sync rod fitting.
Alternatively your drawer or cabinet may be slightly out of square or one of the runner mountings slightly out of level. I presume you have drilled the hole in the correct place in the back of the box? If the pin is not going in, then the drawer will not close. The current Movento units have lateral, fore and back and up and down adjustment of a few mm.