Since todays updates no preview
Since todays updates (see attachment) ibooks.author's preview does not work anymore. It gives me a comment that I needed a newer version of ibook (see attachment).
I am running OS10.9.5 Build 13F1096, iBooks 1.0.1 (281), MacBookPro Retina Mid 2012. I made all the updates from app.store.
I hope somebody can help me! thanks in advance.
Martin