Reverting to more recent versions of numbers document saved on cloud
I recently had to reboot my whole system from a backup from December 2021. I didn't think this would be a problem as most of my work is saved in the cloud. But now when I try to open documents saved in the cloud, it reverts to a December 2021 version. If I go to File --> revert to in Numbers then none of the more recent versions are there. If I log onto the cloud through icloud.com I can see that there are more recent versions there from April 2022. But it will not let me open them. Please please please can anyone help!
iMac 27″, macOS 12.2