Animationtree add animation dropdown doesn't work.

[fallow stirrup]

I have a characterbody with a sprite, animationplayer and animationtree. I have 8 animations made in the animationplayer. I just added the animationtree and made the root an AnimationNodeStateMachine. When i right click to add an animation, this is what it looks like when i hover that dropdown in the right-click menu.

There is a little grey bar that appears on to the right of the "Add Animation", and that's it.

These are the animations i have. They are all in an animationplayer that i a child of the same characterbody as the animationtree