Copy of GeoGebra-Book causes strange problem

Birgit Lachner shared this problem 5 years ago

I copied a book and after that I wanted to add a worksheet to the book. In the dialogue where you can choose the books now the copied book is there several times but I have only one copy of it. The chapters are not always the same. I seems to me, that there is a "copy" in this dialoge for every chapter, because I can't always choose all of the chapters.

Link to book:

Link to copied book: 7ab1b0ef42edb3daf7d10cc349131fbc

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