The splitter belts seem to have a few odd quirks to them, one time one 'locked up' and wouldn't filter after I set them, and another time it started teleporting resources a far distance to a Launcher or Catcher when I placed them, requiring I break and re-place them to 'unlink' it (or just change the routing on the belt splitter)
Pretty neat though, and I love the descriptions, although I feel the very starting intro tutorial could use a floating window that points out a blue crystal and ice node on the map, as it can be hard to spot