The very first project my org setup years ago succeeds running:
vertexai.preview.caching.CachedContent.create()
but any other project/service account i attempt the above in throws either a 500 internal server error or a 403 permissions error. We have verified about 10 times over that these other projects/service accounts have the exact same permissions/roles that the working project has.
Is this feature somehow organizationally limited because its in pre-GA?