that's because it was shadow route :-) you can find an explanation here;
https://voltage.cloud/blog/bitcoin-lightning-network/what-are-the-differences-between-lnd-and-cln/

under privacy.

ffdd1225

Do you have a reference for that? I never heard of shadow nodes so far.

A solution to this problem is to route all your LN transactions through a public node that you secretly control so that you can be sure that it will never cooperate with other nodes to harm your privacy as a sender.

bitcoin

LN privacy question

ubernatural

Do you have a reference for that? I never heard of shadow nodes so far.

A solution to this problem is to route all your LN transactions through a public node that you secretly control so that you can be sure that it will never cooperate with other nodes to harm your privacy as a sender.