Why I can't learn rest?

I tried to learn rest by using tm rest, but when I used it nothing happened and the tm was gone. I tried this even two times and now I’m sad because I lost two tm rests… :cry: So what’s the problem with those tm rests?

does a corrupted memory error appear?

If so that mean you have 4 moves, and you have to delete one to learn it

Hmmm… Yeah. I think you’re right.