Loss of all saves after The Breach

question, i redownloaded the game with the latest patch but i lost all the saves and i had to start over. has this happened to you too and if so, have you managed to solve it or find a solution to make sure it doesn’t happen again?

The breach update at end of April put all saves previous to it into a legacy build.

To play the newest content: you need to start over.

I’m currently trying to get the answer to this myself. As I started playing again after the breach update and the same thing has happened after the hotfixes. I really hope I don’t need to start a third time.