Board Thread:Support Requests - Getting Technical/@comment-26362571-20190311143237/@comment-1038387-20190311155349

The Random page button only selects from a pool of pages, which isn't the total. It's even smaller on mobile, where it's just the most popular pages. On a wiki with only 100-ish pages, you're bound to see the same ones over and over.

The number in the nav bar, the number in Special:Statistics and the number in practically never match. It's an indication rather than an absolute number.