The matter has been previously raised in this "Community.FamilySearch" Forum.
And, the matter has ALSO been, raised; and, discussed, in the "FamilySearch" ("GetSatisfaction") 'Feedback' Forum:
Which has been operating for MANY Years now.
A response from an "Official 'FamilySearch' Representative" on the matter is:
"We are aware of these record access issues and several teams are working to address the problems. Thanks for your patience.
I hope this helps.
Just wanted to share that I have encountered a similar problem with the same census databases, 1860 & 1870. I have found that general person searches for individuals known to be enumerated in 1860 & 1870 will not return theses two databases as options under the 'collectons' tab. Thus I am restricted from investigating anyone using these two databases. My queries to FS about this and about loss of access to viewing census images have not been adequately addressed.