All of the builds that are present on disk do not show up in the 'Build History' in the latest jenkins version 2.24. Also the RSS feeds have this problem too!
Please see attached pictures, where manual is accessed an older build.
In case you need some sort of logs, please describe where and how to get.
The builds list is paginated, buttons to the top right of the widget allow you to navigate through the build pages. Could this be the problem?