To downgrade a Spine project from version 4.2 to 3.8.99, you need to follow a specific process to ensure compatibility. Here are the steps you should take:
Export JSON from Spine 4.2: Open your project in Spine 4.2 and export the skeleton data as JSON. Make sure to set the version to 3.8 in the export settings. This can be done in the export window by changing the Version option in the JSON format options from 4.2 to 3.8.
Import JSON in Spine 3.8.99: Open Spine 3.8.99 and import the JSON file you exported from Spine 4.2. This should allow you to open the project in the older version.
Here is a visual guide to help you with the export settings:
If you still encounter issues, ensure that you are not using any features in Spine 4.2 that are not supported in Spine 3.8.99, as these can cause compatibility problems.
For more detailed information, you can refer to the following resources:
If you follow these steps and still face issues, please provide more details about the error messages or any specific problems you encounter.
