There is NO auto save! There never has been! It is a much requested addition.
There is a settings option on the General tab, "Automatically record sessions and show up to...". This does NOT save "every 5 minutes", it only saves (as far as I can tell), when ALL windows of Chrome are shutdown, and then it saves only the last window closed.
So, you MUST make it a habit (put it on your calendar as a recurring event!), to click the Settings Gear Icon, "back up", and specify the folder to save it. I always save the backup to my Google Drive, a folder called "Session Buddy". Then the backup file is "backed up" already.
By the way, when session buddy says "Backup file saved to downloads folder", it is a misnomer! It is NOT saved yet, it will be saved to the folder you point to on the next screen before you click Save. Any folder, not necessarily the Windows "Download" folder.
Go to Settings, Help, and search for "auto save". The threads all discuss an enhancement wanted, not implemented.
Hope I got it right. I'm not an expert, just a multi-year user. I love it, but it's not perfect. I'm like others who have posted in the past - I would pay a few dollars for an enhanced version.
BTW, the confusion might come because you used to shutdown Chrome all the time, so there was always a recent backup. Now that you've gotten used to Session Buddy, you never shut Chrome down except to reboot the computer (rarely, if possible). :)
Thanks,
Joe.
"No man need fear the years, for they bring him nearer, not to death, but to God." Barclay, William. The Letters to the Corinthians.