After rereading your post, I realized that it is indeed a problem that the values on the Y-axis of the graph view become abnormally large when animating the bone scale from 0.0001 to 1, so I’ve created an issue ticket here to address this: EsotericSoftware/spine-editor1005
We apologize for the inconvenience, and we kindly ask for your patience while we work to resolve this issue.