1-------------I'll tell you about two bugs. First, there's a bug where Ultima's rotation doesn't hit when the movement speed exceeds a certain %. It's probably a bug where the location doesn't match because it's too fast. After equipping Ultima with a movement speed of cc150 and various item movement speeds, if you receive karma's movement speed buff and rotate, the hit won't happen.
2--------------The second is the advance pass item. This item is for users who start from lap 1, but it's impossible for a user in lap 1 to have 15,000 netpoints. But I don't understand what the intention is for making this untradeable.