I have my pvp teams saved, and occasionally I can’t paste them in, but I’ve checked, and it’s not just in pvp. I can’t paste them into my collection, or anywhere else. The button is grayed out.
It might happen a couple of times a week. Restarting the game doesn’t help
It hasn’t come up, but I bet that was it. I suppose I was just assuming that when I long press to copy something that it doesn’t copy a space before or after. I should have thought of that.