Pose editor changes not being saved

Every time I try to switch to config mode in the pose editor, I get the warning: "The current pose has modifications that have not been applied. If you continue the modifications will be discarded.

Do you really want to continue?"

This is despite having saved ALL keys via the key dialog. If I open up the key dialog, nothing is red (which I believe indicates unsaved changes).

Upon exiting the pose editor via the clear button, my model snaps back to its previous position before any changes were made to the pose. How do you actually apply the pose to the model in the scene?

Also, my changes to the pose do not survive a Unity restart... Here's what I'm doing:

1. Create UMotion project.
2. Create clip.
3. Load model into pose editor
4. Make adjustments using pose editor
5. Key dialog --> Select all --> Add Keys (all filters are blue)
6. File --> Save Project
7. Restart Unity, load project in clip editor --> all changes lost (same when loading model into pose editor)