Time Machine: "No macOS system backups were found"
I updated to Big Sur and wanted to downgrade back to Catalina. I made a bootable drive and stored all my data on an external hard drive via Time Machine. I successfully reinstalled Catalina on my mac but when I try to access Time Machine, I get this message, "No macOS system backups were found".
There are precisely 3 different back ups on my external hard drive and I have no other idea why Time Machine does not recognize it. The time machine back ups were made on Big Sur and I am trying to retrieve it on Catalina so that might be a reason but I am not sure.
Any help is appreciated.
MacBook Air 13″, macOS 10.15