When you create a mesh in Spine and hit the generate button, it resets the size and position of the image because it uses the original image size and position as a reference. This behavior is expected as Spine assumes the image should be at its original size when generating a mesh. To avoid this inconvenience, you can manually adjust the mesh after generating it to match the desired size and position. Unfortunately, there isn't a built-in feature to automatically retain the resized and repositioned state when generating a mesh. You might consider noting down the position and size adjustments before generating the mesh to streamline the process.