Each user has unique rights within Sinequa. Some items can't be seen because of the users' rights applied on the indexed documents.
Contact SBS Support via portal stating on which sinequa search (URL) you are having display rights issue.
The rule is that if a box contains one filter element only, the box won't be displayed.
Additionally, if you select a fliter from a box, this one will disappear afterward.
Go to Sinequa Troubleshooting section