There's a common problem arising these days with the labels that they don't work. It has been happening with me too, but somehow I've experienced that they start working later. you just need to keep trying

i think that freeup is repeating the scan codes so the one in use don't work.
Grab only if you have patience to accept this fact.

PS: this is gonna happen with no matter from whom you grab. I'm the one, who's giving away at least Coins.