Hello!
I have the same problem. In my case, I had a warlord which learned it by leveling up; then I got a wish washi which also learned it by leveling up and only now I realized I don't have the TMX because I never needed to get it
Is it fixable?
Game.rxdata
No problem at all.
But before you have all this trouble, please check ir you are able to use online play - apparently some people are facing just a black screem.
gonna try it myself as well