Duplicate entities

I recently installed a Aeotec Z-Wave device. Couple issues:

  1. I can’t figure out what the sourcenodeid and sourcenodeid_2 are.
  2. After I rebooted the alarm_level and alarm_type entities reproduced and now there are _2 versions of them. Are they valid and didn’t show up until later?
  3. If I pick any entity and check Exclude this entity from Home Assistant it’s still there. Even if I reboot.

Thoughts?