Import From Animation Root option on transform tracks creates a new absolute transform track

Importing root motion onto a transform creates a new absolute track, which can blend unexpectedly with existing transforms. 

1. Create a new sequence
2. Add an object to the sequence such as a cube
3. Add a transform track if there ins't already one
4. Right click on the transform track and select Import From Animation Root
5. Select an animation

RESULT

A new absolute transform track will be created, which will blend with the other track resulting in a transform that is not representative of the animation's root motion