I have the same issue. I had to reinstall Vectorworks 2024 update 3 and the reinstalle Enscape also. But no way to find the Enscape toolset. Any success?
Just in case it helps, back when I updated to VW2024 I had to uninstall Enscape and then re-install it before the “Third-Party” menu item appears in the Tools menu, which then enables adding the Enscape palette. But it then worked fine.