@dstillman Thanks for the update!
@dstillman I just tried around 50 times (100s as the increment). For me, 2600s seems enough for me (2500 failed once in 50 trails). I think 3000s might be a safe choice for most people.
Yes, currently, we can do a bulk export of PDFs easily within a collection. Just type "pdf" in the search bar within the collection page, and selection all items (ctrl+A), and drag them into a windows file explorer window. Done.
@dstillman Same problem occurred to me until I found this thread. I also set the delay at 6000 following @rnicrosoft solution, and the PDF download problem never showed again. As you mentioned in your last comment, I hope Zotero can automatically de…