Sounds like an invalid filter being active. Did you by chance apply a filter on a column that you have removed afterwards? In the next patch release R3.10.3, we implemented a fix to remove filters for invisible columns (e. g. columns that were visible, filtered and then were hidden).
In the meantime, you can enable all columns (via the list options icon on the top-right of the list field), and remove all column filters by right-clicking on the funnel-icon where it´s shown (in the column header). This will reset all column filters. Afterwards you can re-apply your desired filters.
Zanders some context for the screenshot. this is in Admin Menu > All Tasks. fresh login wiped cache on a private browser, only showing two of my 129 tasks.
A cache-wipe will not reset filters as these are nowadays synced to the user profile. It might be a good idea for us to provide a "reset all user field settings" option in the admin panel. Would be a bit extreme but would help if there is a really annoying bug.
