Mixamo duplicated animations not working.

When I download model (with animation) from Mixamo and use animation from .fbx on another 3d character everything working fine, but when I duplicate that animation stop working.
https://ibb.co/ccNJBp6

 

Please elaborate. I don’t understand what exactly you do and what works and doesn’t.

 

https://ibb.co/k8Ln5Ld . Animation on the right side is duplicate and it doesn't work.

 

This doesn’t add any info. Explain what you do and what doesn’t work exactly.

 

1. Download character with animation from Mixamo.
2. Import character in unity
3. Now I want to edit that animation but it's Read-Only
4. I duplicate animation (ctrl + d) and now I can edit animation keyframes
But now when I use that animation with my 3d character that duplicated animation not working.

 

Did you drag it into the Animator window, or otherwise assigned it to the Animator?

 

Please stop wasting my time. if you don't know how to help then don't.

 

Oh dear internet stranger, how sorry I am for trying to assist you with a problem you have which concerns me none at all.
Have the best of time figuring out why “doesn’t work” doesn’t work for you.

 

Do you think I'm stupid?

This is not my first time working with animations in unity....

 

Maybe not, but clearly it's your first time trying to get help from online strangers. By definition, I know nothing about you nor you about me. If I'm asking a question it's not to imply that you are stupid, it's to get more info that I don't have.
If you still wan't help, then try to help others to help you by providing *detailed* information regarding what exactly you tried, and what happened. Saying "animation doesn't work" just doesn't cut it.

 

Solution:
click on package > rig > Animation Type.
Set the animation type and the avatar definition you desire.
Hit apply.
Now root motion will work.