Would also help to know if you are getting any error messages at boot time.
The UEFI partition no longer gets listed, I am not able to even try to boot :(
You might be able to correct this without re-copying everything by using rsync.
I would rsync targeting the files I have copied without trying to move them, right? (sorry if my question is too stupid)
And that was the comment with more “likes” 👍