Animation Tree + Bezier Curves = unexpected behaviour

[fguillen]

Godot version

4.0.stable, 4.0.3 and 4.1-dev3

System information

MacOS - Ventura 13.1 - Godot 4.0.stable, 4.0.3 and 4.1-dev3

Issue description

I have 2 animations:

• appear: it contains a track with Bezier curves on the property scale
• idle: it contains property track in the property scale

When I use both Animations in an AnimationTree the Bezier Curve Animation doesn't work properly.

Please see the video with the reproduction of the issue: https://youtu.be/AXDrEEJWysk

Steps to reproduce

Add an AnimationPlayer Node

1. Create 2 Animations (creating the RESET Animation):

• appear: it contains a track with Bezier curves on the property scale
• idle: it contains property track in the property scale

2. Add an AnimationTree Node
   Add a TreeRoot as AnimationNodeStateMachine
   Assign the previous AnimationPlayer as the AnimPlayer
   Add the 2 previous Animations
   Concatenate them:

3. Activate the AnimationTree. One of the animations is not working.

The error is happening in the editor as well as in the running project on each Scene

Please see the video with the reproduction of the issue: https://youtu.be/AXDrEEJWysk

Minimal reproduction project

GodotBugReproductionProjectAnimationTreeAndBezierCurves.zip

[AThousandShips]

Does it work in a running project, or is it broken both in editor and running? Can you test this on 4.0.3? Can you test it on 4.1.dev?

[fguillen]

Does it work in a running project, or is it broken both in editor and running? Can you test this on 4.0.3? Can you test it on 4.1.dev?

• Tested in 4.0.3 and 4.1-dev3: same issue. In 4.1-dev3 all the Animations stop working. in 4.0.3 only the Bezier Curve one stops working
• The error is happening in the editor as well as in the running project on each Scene

[TokageItLab]

Duplicate of #49431