Here it shows that in the preview. The position is fine. But when I play the position changes.
I made sure that the animation includes position data. To the correct position. But it seems the animation uses a different kind of position(?)
Thanks in advance,
Mark
Do you happen to find a solution? Me as well has this problem and its pissing me off 
Yes. I put the animated child under a parent and moved that parent until the animation lined up.
Seems I found the matter: I got this on objects with Animator → Controller set. Set it to None and than to desired runtime after clip ends.
Thank you igorvlassov! I was having the same issue
Can you elaborate i dont get it
For other googlers. It was because the Animator on the Gameobject causing issues had a controller set, which is conflicting with the timeline’s animations.
(Controller needs to be “None”, like this)