Hello,
Thank you for your report. We have confirmed the problem can be reproduced if you choose Latest 3.8
to switch the version to 3.8.99, the setting will be converted Latest
in 3.8, so the latest stable version (currently 4.0.56) will be launched on the next run. We will try to find a solution for it, but this can be avoided if you click Other...
and type the version number instead of using Latest 3.8
to switch.
We hope the above will help you avoid the problem.
I created an issue for this problem:
https://github.com/EsotericSoftware/spine-editor/issues/622
You can subscribe to the issue ticket, then you will receive additional notifications upon any progress.
This behavior will be improved in the next launcher version update, 4.1.03. For more information, please visit GitHub: https://github.com/EsotericSoftware/spine-editor/issues/622