Although the knife tools works as expected, the scissors tool does not. If you just open up one node, it behaves correctly. But if you open up more then one node it actually creates 2 lineobjects that are not seperated on two layers, I use the scissors tools (in Illustrator) mainly for cutting objects that should stay open (no fill, just two open line objects) In this scenario the scissors tool is not usable since you then have two nodes on top of each other on the same layer making it impossible to select the correct node. Please fix this.