This might be an issue just with our server but we just updated to to the newest version and we are having an issue with the knapsacks from Tinkers Construct. No matter what I do with the stuff inside, whenever I log out and log back in, it just rolls back to the exact stuff I had in there from before we updated. So far it's been kinda nice because I've accidentally duplicated a few things, haha. I am worried for the people that are going to start losing items though. Anyone else seen this issue or have any thoughts on a fix?