Weird bugs with the new offsets?

I'm using the new offsets on one of my character animation tracks and they transform / matrix manipulations seem flat out bugged, but maybe I just don't understand them at all?

Setup:

• Unity 2018.3.0b10
• In Edit mode
• Character ("Agent") starts at identity transform
• Character animator has no controller and root motion disabled (for testing)
• Playable Director starts at identity transform
• Animation track is set to use Transform offsets
• Animation clip has no offset

Here's what happens when I move the track offsets:

• The position gizmo does not follow the actual position offset
• The position offset seems to be applied after the rotation offset? Which is very counter intuitive if it's not a bug... The matrix operation order feels like should be inverted
• The rotation offset applies values twice too big? For example, rotating by 90 degrees actually does a full 180 spin, and 180 brings it back to the original rotation.

Am I doing something wrong or is this normal? Are the new offsets documented anywhere?

Video:

 

Alright, I think I understood the cause.
The transform hierarchy under the object had an additional child before the hip bone. (A child of the root object, a parent of the hip bone). Removing it fixed the issue. I'm unsure why that wouldn't cause a problem in the normal animator controllers but would in Timeline, but for now I'm good!