InDesign crashing during export to Reflowable Epub
I'm turning a 300+ page book with over 700 Endnotes into a Reflowable Epub. After having ID crash repeatedly during export, I found an extensive list of posts on this board pointing to Endnotes as the problem.
Unfortunately, I had already converted all 700+ footnotes to endnotes because the footnotes weren't superscripting all the numbers correctly during export—leaving some of them not superscripted, which looked pretty messy. However, the only real solution that folks came up with was to convert the endnotes back to footnotes.
Rather than convert all my endnotes back to footnotes, I exported each chapter to Reflowable Epub separately, finding that Chapter 4 was the only one that caused InDesign to freeze. I converted that chapter back to footnotes and it exported fine, even though the numbers were messy, so I left that one chapter as footnotes (changed to endnotes during export) and the whole book exported correctly.
I hope this helps others to troubleshoot ID books crashing during export to Reflowable Epub, and perhaps Adobe will figure out how to fix this if they ever want to be a popular source for reflowable epubs—either making all the superscripted footnote numbers export correctly, or figuring out why endnotes cause ID to crash.

