More manure!

Just had an email from a plotter who has been told the problem on the sites obtaining manure from the same supplier, was as a result of using manure that was too fresh but he is not convinced.The manure came from an organic farm and they insist that it can't be herbicide related. He has commented that the manure didn't break down as manure normally does. This rang bells with me as the texture of our manure was not what we have normally experienced. Parts were claggy and in fact could be described as slimy. Anyone else notice anything like this? Where it was applied the soil texture was spoiled. Just wondering if there is any significance in this. Please keep information coming.