I have been unable to upload my book to blurb. When I go to export it says there was an upload error due to cover size. I reported it to blurb and they tell me it is an adobe issue and this was their response.
This looks like a bug within Lightroom that is preventing the project from uploading. But because the duplicated project also got the same error, the issue is in the cover file. The only option to be able to upload the project from Lightroom is by recreating the entire project to start out without this bug. We do not have a way to fix this bug because this is a error within Lightroom, and a fix would require Adobe Engineers to correct.
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