yugutou Thank you for your report! It does appear that there is such a problem, but unfortunately 3.8.99 is already out of the update and we are unable to fix it.
I just checked the latest stable version, 4.1.24, to see if this behavior has been fixed, and it has. So please upgrade your editor version to fix the problem.
Please note that when you upgrade the major or minor version of the Spine editor, you must also upgrade the Spine runtime version in your project. For more information on this, please refer to the following section of the Spine User Guide: https://zh.esotericsoftware.com/spine-versioning#%E5%90%8C%E6%AD%A5%E7%89%88%E6%9C%AC
