Undo will not undo back to the pose before

[boredstiff]

This bug was filed via email in November 2017, but follow up questioning was not answered.

#Bugs:

• Are you using the Python or MEL version? The MEL version is unsupported and only included as legacy. Python

• Is this a bug or a workflow issue? Bug

#Filing a bug:

• Version of the Python script - 3.0.0
• Short description of what is happening

Thank you so much for tweenmachine I have been using it for years and can't work without it! I have been running into an undo bug in 2017 with tweenmachine. When I set a tween value on the slider and I try to undo back to what I had before I tweened it won't remember that undo and will not undo back to the pose before I used it. It happens pretty consistently but not all the time but it really hurts the tween workflow since I can't go back to what I had before I used the tweenmachine. Thank you again and I am looking forward to hearing back from you! Have a good one!

• Expected result - Undo queue should be working properly
• Actual result - Undo is not working0
• Steps to reproduce
  1. Set a tween value on the slider
  2. Press Ctrl+Z

[boredstiff]

Cannot reproduce.