Steps to reproduce :

- create an animator controller
- create a blend tree
- add two motions to the blend tree and assign animations to it
- switch to 2D Simple Directional
- press play in the preview window
- switch the Compute Positions to X Position > Angular Speed (deg) and notice the error

Reported delta does not match with progression of time. Check that the OnInteractivePreviewGUI function only updates the Animator on Repaint events.
lastNormalTime: 0.8808618, normalizedDelta: 2.40276, expectedNormalizedTime: 0.2836213, normalizedTime: 0.2836215, difference: -2
UnityEditor.DockArea:OnGUI()

*Note :
Also occurs with the following options :
X Position > velocity X
Y Position > Speed
Y Position > Angular Speed (rad)
Y Possition > Angular Speed (deg)