Solr only working for logged in users

Hi. We're using the latest Omeka and Solr plugin. It took a while to figure out what was going on, but Solr is only working for logged in users. If you are not logged in, you get zero results, if you are logged in you get the results. Has anyone else seen this behavior? Where should I start to troubleshoot this? Thanks

For future reference we were using Omeka 2.2.2 with Solr 2.2.0 plugin. I reverted to the 2.1.1 plugin and it fixed this issue

Has no one else seen this behavior?

This plus re-indexing solves this issue