Board Thread:Game Discussion/@comment-35518302-20180507133913/@comment-28169398-20180507185021

As long as FM hasn't changed it from the Version 5 Flashbacks, you can start the flashback before you download the update, download, and continue playing until you finish that flashback.

However, if you have more than one Flashback, say One On 1 (v6.2.0) and No Compromise (v6.2.0), left to do, you will only be able to finish the one that you start. The unstarted one does not carry to the next update.