For repair of the alignment
My level of knowledge is (I am not all-knowing), it is extensive.
Therefore it is first to consider whether it is not easier to repeat the copying of the plates with gparted (on the again virgin ssd)
I also assume that the old original of sda1 still exists as a backup
They need:
1. a siduction-live with gparted and parted (some experience with handling is recommended)
Warning: It is extremely important to always select "Align to NOTHING"(Ausrichten an Nichts) in the following operations!I only found a
German manual. The relevant part for Linux starts at: "Get to work."(An die Arbeit)
If the described operations are successful, the siduction will not start on restart. Therefore, the installation of the grub would also have to be rearranged from Live.