I had a problem with my bread today, too, Mike. The first rise was fine, but I didn't get hardly any oven spring, which is very unusual. I baked it in my new Breville Smart Oven, first time using that for bread. I used my usual Lodge cast iron bread pans, with the oven set at 325 for 40 minutes. After 20 minutes, the top crust looked done, very brown, but it didn't seem to get much darker during the next 20 minutes. When I took it out, it was very very crusty, hard, very unusual. We'll see what it's like when cut.