eBook gets transferred without cover image

[sepsol]

Describe the bug
Everything worked flawlessly, my only complaint is that the cover of the ebook doesn't get transferred to the Kindle Basic (10th Gen).

System Information

• OS: macOS Monterey
• calibre version: 5.40
• Python version: 2.17.18
• Plugin version 3.19.0

Error message
N/A

To Reproduce
Send a book with WordDumb over to your Kindle device using a USB cable and notice that it doesn't have any cover.

Expected behavior
For it to have a cover. I was able to get it with cover even when I tried to manually send the .mobi file generated by Calibre.

Screenshots or videos
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Additional context
Add any other context about the problem here.

[xxyzz]

Does connect your Kindle to calibre again restore the cover? More information: https://www.mobileread.com/forums/showthread.php?t=329945

[xxyzz]

Close due to a similar issue was resolved.