The "Preview window" is open on the setup page. However, although I have hidden some layers on both the setup and animation pages, I cannot see them in the "Preview" window. In other words, the animation movements are updated on the preview page, but the layers are not updated. Although I have hidden the layers, I still see these layers in the preview window. Is there a solution for this? (Version 4.2.38)
Preview window not updating
The behavior you're experiencing with the Preview window is due to how Spine handles slot visibility. In the editor, hiding slots only affects the workspace to reduce clutter and does not impact the Preview window or runtime. To ensure that certain attachments are not visible in the Preview window, you need to turn off the attachments in setup mode. This will ensure they are not active during preview or runtime. The Preview window uses the Spine Runtime, which means it behaves similarly to how your animations would appear in your game, including mixing between animations and tracks.