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Book Module/Blurb Problems


New Member
Apr 15, 2021
Lightroom Version
Lightroom Classic version: 10.3 [ 202105281559-8dc50eb4 ]
Operating System
  1. macOS 11.0 Big Sur
For some months now I have not been able to upload a book from the book module to Blurb.
When I click on the "Send book to Blurb" button, I get the message about "Photos with transparency."
When I click on the "OK" button, nothing happens???
I have made several books from here and this problem just arose a few months back.
I have enabled the Adobe techs to take control of my computer probably three times, and they can't seem to clear up the problem.
I have tried several versions of LR, and have updated to the latest version.
Anyone have an answer?
Running on a Mac Big Sur version 11.4


Jun 5, 2012
46047 Oberhausen, Germany
Lightroom Experience
Lightroom Version
That is quite normal when you use "fit" instead of "fill". The transparent space in the Photo cell will get the background color. With the "OK"- button only a list with the page numbers of pages with transparencies will generated.