I put a character A in timeline as a animation track. Then dragged 2 animations: running, sprinting forward roll in A's track. I wanted A to running at the begin of this track and then roll forward. And it worked when I click the Unity "Play" button. But when I tried to replay it in Timeline Editor at specific time, things changed. Character A went back to the original position after "running" animation clip finished, then rolled from that position, which was totally different from what I saw in the "Play" mode.