Opportunity Marketplace. Searches are not saved.

Summary:

We've been testing searches in Opportunity Marketplace, but once you go out of the Opportunity Marketplace module, the search is gone. Is it supposed to work this way?

Content (required):

We've been testing create searches in Opportunity Marketplace, created some searches successfully, but, once you go out of the Opportunity Marketplace module, the search is gone. We've tried System searches, Personal Shared Searches. Since this is a System or Shared search, the other people should be able to see it, correct? Unfortunately, this is not the case. Please advise. Thank you!

Version (include the version you are using, if applicable):