Can't see older Time Machine Backups
I accidentally deleted a file, and wanted to recover it from a backup from about a week ago. However, when I enter the Time Machine, and try to go back beyond yesterday, the backups show on the right hand side of the screen (the timeline), but when I click on a date nothing happens. I have tried waiting for a couple of minutes, but still nothing. Any idea what could be wrong?
MacBook Pro 16″, macOS 10.15