When exporting animations from Spine to be used in Cocos Creator, it's crucial to ensure that the Spine runtime version you are using in Cocos Creator matches the version of the Spine editor used to export the JSON file. Since you are using Spine version 4.2, you need to ensure that the Cocos Creator project is using a compatible runtime version. If the runtime version is older, it may not support the JSON format changes introduced in newer Spine versions. Additionally, make sure that all necessary files (such as the .atlas and image files) are correctly linked and that the file extensions are set up properly. If you continue to experience issues, you might want to check if there are any specific settings or updates required for the Cocos Creator runtime to handle the latest Spine export formats.
