Composite Device Tracker Platform

I started getting this after the 0.104 update. Only difference is it’s now listed as a warning. Any thoughts?

2020-01-25 09:20:31 WARNING (SyncWorker_0) [custom_components.composite.device_tracker] device_tracker.john_s_iphone_unifi unsupported source_type: None
2020-01-25 09:20:31 WARNING (SyncWorker_9) [custom_components.composite.device_tracker] device_tracker.sue_s_iphone_unifi unsupported source_type: None

Is there something I need to define that I’m not when it references unsupported source_type: None?

For reference below is my composite definition:

device_tracker:
  - platform: composite
    name: John Tracker
    time_as: device_or_local
    entity_id:
      - device_tracker.john_s_iphone_unifi
      - device_tracker.jiphone

  - platform: composite
    name: Sue Tracker
    time_as: device_or_local
    entity_id:
      - device_tracker.sue_s_iphone_unifi
      - device_tracker.siphone