Hi! Thanks so much for your feedback. We are aware of the visual bug and will update with more detail this coming Monday. The recent announcement about it can be found here.

Please know that the original post for the event did explicitly state that it was a cross-server ranking event as you see below:

The original text can be found here: https://forum-narutoen.oasgames.com/page/show-post-31881-1.html

I do understand your position though and will be forwarding your feedback to the team.

~Jib