Some time ago I too was having problems with my bread. I don't use a bread machine, but some how it just wasn't right.
I contacted Robin Hood the millers, and they said it could be the corn growing under
too much rain too humid, all these things add to the quality of the finished product.
Any way they sent me two coupons good for two 10 K sacks flour, = 22pound each I always buy 10 K at a time. on top of the coupons we took the remains of the sack I was using about 1/2 the 10K. took it back to the shop and they replaced it with a new bag.
the new batches worked fine so maybe they were right. qahtan