edapstah I also noticed this.
I have one thread where the branches seem to be a maze.
When I open the thread the top message is a message which was a message I edited further down the thread.
But the original thread is now in the branch 2/2, if I then scroll further down, there is another branch 3/3 of another message, if I go back in that branch, the top messages switches to the branch 0/2, and this is finally the original message which was my starting message for that thread. Don't know what happened there. And switching the branches takes some time and is a bit sluggish in that thread. To be fair the thread was really long, so this may be an edge case, but nonetheless a very weird experience.
If anyone from Kagi wants/can take a look at this, this would be the URL https://kagi.com/assistant/8c60ec77-0881-48cc-9aa4-c00db40124df