I know this is an old thread, but I actually just ran into this problem too. In my case both my logistics network condition and construction network condition were failing. But taking a hint from the solution here, I decided to delete and re-place both inserters, rewiring them from scratch ,and voil...

Any blueprints system that involves sorting icons in a grid is basically unusable. It's extremely cumbersome and ends up being too difficult to bother with. Im my games, I've ended up using blueprints almost exclusively for copy/paste from other parts of my map or importing strings for one-time plac...