I have moved the websites to a new server and updated to the latest revolution version. But the problem is still there.
You can not preview a page unless you mark is as published at some of the context.
There are now 4 contexts. Original "web" context and the second context that I added display the preview without any problem.
Third and fourth ones gives the following page
Page not found
The page you requested was not found.
This is a one user process, which is the admin trying to preview the page from manager.
I need to add several pages and test them before publishing but not possible.
Should I report this as a bug?