This bread is sweet and satisfying, delicious. BUT I have made it twice and both times the bottoms stuck in the pans. The first time I did not grease the pan because the recipe does not say to do so. There is 1 cup of oil in the bread and I thought that would provide sufficient release. It didn't. The second time I sprayed the bottom with a release baking spray. The bottoms stuck again. Has this happened to anyone else? Any suggestions?