Issue with co-op TVHM

Me and a buddy started new charters and played threw the first campaign and then we started threw the true vault hunter mode and we did all of the side quests we got to chapter 17, (blood drive story mission) and found out that none of the progression in co-op went to my character including main quests, side quests and collectibles. i have looked for fixes for this but i don’t think there are any to get my charter back to where we are in co-op. if anyone has a suggestion or fixes that would be great, Thanks