How to reduce twist in my warp chain

16/2 Brassard cotton. I keep having this problem with the warp twisting back on itself whenever I set it down. I used a bobbin rack so I didn't add more twist off the cone, tight chain off the warping board, still having problems with excess twist. This is making it very difficult to thread the heddles as I'm constantly untwisting and detangling every thread. I've used 8/2 cotton from the same place and never had this issue before. Is it a me problem or a manufacturer problem?