Mixamo Commercial Use In Games

My game is going on to build for playstore but i am facing some problems. I have downloaded three characters and many animations now at first time the characters will be unlocked in game and will be used by player after watching ads per character but the character and animation are not downloadable and even editable inside the game as they are the part of game file. Now anyone tell me can my game will be lunched without any copright issue or any other issues which will be occured due to this character and animation. Kindly help me in this problem.