I am using the Spine GDExtension for Godot 4.4.1.
I am using a transform constraint for a bone that inverses the scale value of another bone, to do a simple fake 3D effect.

Here is what I made, as the front of the door shrinks, the side grows (it has a second constraint to match position).

But here is a recreation of what I get in Godot, which is that it doesn't scale the side.

Is this a bug, or have I missed anything here as to why it doesn't work as expected?