I was changed to “Dragon Body” → “Body” of Hierarchy panel as shown in the screenshot. As a result, the problem occurs in animated clips attached herein. However, do not know how to change the animation clip Properties name. What shall I do?
I tried to reproduce your problem.
I renamed while the Animation view was opened and the name also changed in the Animation.
Maybe try to rename back and rename again with the animation open. You may also have to click away for the rename to take place.