I'm having exactly the same problem, and have been for a couple of weeks now. Goodreads cover search seems to work ok, but neither Google Images nor Kindle High-Res are working. The log is as follows:
****************************** Google Images Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36')]
Failed to download valid cover
Took 0.4989509582519531 seconds
Search URL:
https://www.google.com/search?as_st=...,iar:t,ift:jpg
No images found for, title: 'Interview With Vampire' and authors: ['Anne Rice']
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****************************** Kindle hi-res covers Covers ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36')]
Failed to download valid cover
Took 3.4740917682647705 seconds
ASIN not present in metadata
Goodreads id present in metadata: 43763
Fetching book details:
https://www.goodreads.com/book/show/43763
ISBN present in metadata: %s 9780345476876
Searching Goodreads for book:
https://www.goodreads.com/search?q=9780345476876
Fetching book details:
https://www.goodreads.com/book/show/...th_the_Vampire
Cover URLs: []
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