spine-unity 4.0 installed from the github link. Straight Skeleton materials are in fact the PMA ones. Straight ones are missing in the package.
Thanks for reporting and sorry for the troubles! The material assets seem to have been accidental identical copies (also with the asset name parameter having PMA instead of Straight in the name, thus looking identical once selected). This has just been fixed on the 4.0 and 4.1-beta branches. New spine-unity 4.0 and 4.1-beta unitypackages are available for download here as usual: Spine Unity Download
PMA
Straight
The issue has been tracked under this issue ticket: https://github.com/EsotericSoftware/spine-runtimes/issues/2084
It works now, thanks!
Glad to hear, thanks for getting back to us! 🙂
