I am having the same problem. After settling in bucket, I skim the foam off like usually. Then I bottle. A foam develops on top, and it crystalizes easier then other honey years. After if crystalizes, it has very coarse crystals, and I put in luke warm water and there is abundant foam in the jar. So I was wondering what is causing it too, the honey still taste quite good.
On another note, my 2010 honey has yet to crystalize. It is interesting to see how my honey changes over the years. I live in the boreal forest, so there are only wildflowers and no farms around.