Yeah, I had to redo the purple sword.
I had some friends help me, and then when we broke the wall, I touched the sword and it didn’t give me it no matter how much I touched it.
After I got with a group of other people, I told everyone to get off the sword so I could touch it, then touched it and it gave it to me. I guess you have to not have other people touching it.
Also, I’m pretty sure Robeats sword was pay to win, as getting the songs you needed required VIP or playing Robeats a lot.