Inevitable360
Yes, I had an older version. I think from 2021.
The installation was on the same computer, just two different drives.
Yes, I put my existing wallet.dat file in the directory. It saw the wallet, but did not see the blockchain, because it overid the chainstate folder and made it new.
So, I guess that was the issue. I didn't realize I should have backed up the chainstate folder and not just the blocks folder.
So, in the end I renamed the directory folder and forced the new core to recreate the date directory from scratch. It finally was able to sync headers and I'm now resyncing the blockchain from the beginning, but it's faster than what it use to be.
So, I think all is good now.
Thanks for responding!