from: 2489868741
to: 4294967295
channel: 31
decoded {
  portnum: TEXT_MESSAGE_APP
  bitfield: 1
}
id: 2774329240
rx_time: 1762118659
rx_snr: 11.0
rx_rssi: -42
hop_start: 7
relay_node: 20
transport_mechanism: TRANSPORT_LORA

Presumably it could also happen if like you have a neighbor close to you, and you can only see each other. Or even if you own 2 devices. They would ack each others messages but maybe not send to rest