Small Cracks On The Edges Of My ProBuilder Meshes

I use the Unity package ProBuilder with ProGrids to model all of my game assets and i recently discovered a lot of small cracks on the edges of my ProBuilder meshes. These cracks are formed when sometimes I tried to snap vertexes, edges, and faces to a certain position on the grid and found some of the vertexes are not in the position they were snapped to, instead some of them always seems to have a little space between it and the intended position. It would be awesome if somebody could tell me how to solve it.