Currently, Great Tree informs of previous rewards gained from a higher level of trees from previous events.

Itachi and Tendo were featured in last Great Tree and if there are players on your server that went for them, it'll display till that section of the Great Tree is met once again.

It's not necessarily lying. Just keeping track of previous rewards.

However, I've reported it and if confirmed to be a bug, Will make sure to get it fixed.

Thank you!