I think I also put D2T on the bills. I bet that is the issue.
I coat all my bills and haven't seen any problems. Check to be sure all the weights inside the bait move freely. I had a 2.5 that had the biggest weight stuck on one side of the little channel it was in. Also make sure all the hook rings and line ring are lined up right. If you have a blob of d2t on one side if the bill it could affect the bait