Book title does not change in ibook despite functioned changes in ibook Author program
Hello, I really hope, someone could help. Last year I published an ibook in German language. Now I am working on an English version. I made a copy of the German file and started to translate it in English. All worked well in ibook Author, the book title (first page which is shown) as well. I can also see / read the book cover / tile in English which vizualisations a.s.o (in ibook Author). But when I generate the ibook file (e.g. for testing on my iPad, Mac as well) I always get the book title / whole cover (page) in German language. It seems that (only) the this cover page is an older version of my book (in German). This is crazy as the rest of the book is correct, it is just the first page (which is seen in the ibook store / shelf and - after opening the book - just a second before the first chapter opens). I have made all necessary updates in Mac and ipad, but it did not help. What can I do? I really appreciate your help. Thanks in advance and kind regards...
ibook author