Cannot restore MBP from network Time Machine backup
I have a mid-2014 MacBook Pro running Mojave 10.14.6. Recently I installed Catalina. Due to the excessive bugginess I decided to rollback to Mojave. I had much trouble doing that for some odd reason. I did a clean install of Mojave from a USB Installer. That went fine. However, when I attempt to restore my data from my LAN Time Machine backup, I receive a notice saying trouble connecting to the network. I tried using Migration Assistant, restore in recovery mode, going through wifi, ethernet, and even direct usb connection of the backup drive. Nothing seems to work. When Catalina was installed it performed one backup of the system prior to deciding to rollback.
If I cannot do a conventional restore, is there a way I can access my individual files from the sparse bundle package? And before you mention it, no, I cannot do that via Time Machine either. Is there a way to get into my backup using Terminal? Do I need to edit permissions perhaps? Please try to be precise and succinct as possible. My gratitude.
My MBP is a mid-2014 with all the bells and whistles running Mojave 10.14.6.
MacBook Pro Retina