Hi,
I've ran into issues where after publishing attributes via WSP they are not added to the REST API. There's a race condition where the process that publishes the attributes to the application servers runs after the rest api has started (this all happens when the services are starting).
To fix this you can run pdm_rest_util -undeploy, wait for it to finish, then run pdm_rest_util -deploy. You may still need to recycle services after that.
I have not touched the those options manager settings and have access to all objects in the rest api.