Is the Substance Plugin not supported for 4.23 Preview?
Substance is usually one of the last plugins to support new engine versions. Even after 4.23 is released, it usually takes a few weeks.
External plugins and Marketplace assets aren’t supported during engine previews. A large factor in this is because binary compatibility is typically broken between the various preview versions (something we avoid doing between hotfixes after release), and can be a hassle to support over the multiple weeks.
Developers can use the preview cycle to test and adapt their plugins or assets, and then aim to release the supported version soon after the official engine release.
ok, got it. thanks for explanation. appreciate it!