[omni.ui.python] Exception: Could not open /World/testAnimGraph/AnimationGraph! Missing graph model!

Hi all,
I can reproduce by following step:
1.Create a empty AnimationGraph and save to file.
2.Drop it to a new stage, see console.
How can I fix it?

Hello @user76666! I reached out to the development team for more help on this error. Thanks for letting us know!