Just from what I can see on that list, you only have one line powered device. Line powered devices are the repeaters for the mesh and help to build a healthy, solid mesh. You started with a sensor and a door lock which aren't repeaters.
You typically should start with pairing the repeating devices first, and do the ones closest to the hub. That gives the next round of further away devices something to pair with/to. After all those are done, then move on to battery powered devices.
Some great advice from support below:
