TheShadow

If you delete a party you won't lose any character progression, but you will lose party progression. While this isn't important in terms of acquiring Feats, it is significant for Heroic and Legendary progress and for the Legendary completion reward. Or that's my understanding and my experience of being forced to delete a party (actually, having a party deleted during an upgrade) Yes this is true, I should have mentioned that. I suppose having to replay a few heroics isn't that bad since the other choice is not getting to play at all... Also some people with this issue might not have any heroic or legendary progress at all.

Quick workaround to this issue: Go back to main menu, go into Story, delete your party that has the issue (characters are not deleted), create a new party and choose "experienced characters" then just fill out the party with the exact same characters and start. The only progress you lose using this method is the last mission you completed. Hope this helps -Shadow