MarginNote 3 funktioniert nicht

By integrating the PDF/EPUB reader and multiple powerful study tools, MarginNote will enable learners to reorganize and connect knowledge from different aspects, then memorize and grasp it accordingly.  Whatever your profession, such as student, educator, researcher, lawyer, or life-long learner, you may annotate and take notes through MarginNote, organize notes via Mindmap and Outline, connect knowledge horizontally via Hashtag and raise memory effect via the Flashcards.  Integrating powerful tools for book annotation, mindmapping, flashcards and more, to build up your reading notes as never before. Welcome to MarginNote.  This is a highly powerful reading and study software and is applicable to Mac, iPad, and iPhone.  You will discover what MarginNote does is not to simply integrate these tools.  Instead, it combines them deeply and skillfully, which makes it easier for users to toggle between different tools. * Support both Document Reading mode & Study Reading mode. * Support direct text-typing & sketching when editing note cards. * Support Auto OCR when excerpting on scanned PDFs. * Support direct emphasis in powerful Emphasis mode both on PDF or Outline. * Support auto convert emphasis to Cloze in CardDeck. * Support both document tabs & split views to switch between documents. * Auto grouping new excerpts by Document Table of Contents. * Swipe/Drag gestures to slide in/out Outline & Documents in Study mode. * Enhanced grouped cut/paste, drag to merge,.. etc. * Improved search and displaying keywords in results. * View Flashcards in MindMap mode and Document mode. * Fixed several design issue in previous versions. * Separate categories for Document, Study and Review. * Recover data from Trash and make data more safe. - Quick searching and filtering according to colors, hashtags, books.