Humanoid Character is not animating for no reason

Hi. I have created a character in Fuse character creation programm . I uploaded character on mixamo web site to get character rig and make the animation possible. Then uploaded character in unity and made an humanoid avatar , but it just stucks in t-pose and wont animate. I have to say what i have been already made four different characters and sucessfully implemented them in my game . The system i have is humanoid animations with the same avatar from the first implemented humanoid character . The same animation controller for all characters. Animator has no avatar in the inspector and gets it when the game starts and the skin is choosed . I have successfully implemented a new character few days ago , but now i cant add any new character who has its animations working . My unity version is 2019.4.20f1. During the development i havent updated my version . I have tried a lot and cant make my problem have been solved for about 3 days already. Any help would be appreciated. thx