For some books only, the metadata (cover and description) do not show up

jgarbi 6 months ago updated 6 months ago 3


I use Calibre (the latest version) to create my library. I download covers and description and embed them in the book files. Then I start a new scan in Ubooquity. For most of the books, it works just fine. But in some rare cases, whatever I do, it doesn't show neither the cover nor the description in Ubooquity. Could you please help me figure out why ?

Here's my System Info :

Ubooquity version: 2.1.2 built on 2018-10-14 at 12:58
Java version: 1.8.0_181
Java vendor: Oracle Corporation
Java VM name: Java HotSpot(TM) Client VM
OS name: Windows 10
OS version: 10.0
OS architecture: x86
Number of processors: 24
Max memory: 247 MB
Free memory: 46 MB
Total memory: 128 MB
isUserManagementEnabled: false
comicWidth: 160
comicHeight: 230
comicsPaginationNumber: 30
bookWidth: 160
bookHeight: 230
booksPaginationNumber: 30
autoscanPeriod: 0
isRemoteAdminEnabled: false
theme: Default
reverseProxyPrefix: false
keystorePath: false
keystorePassword: true
isOpdsProviderEnabled: false
scanExclusionPattern: false
bypassSingleRootFolder: true
window.innerWidth: 982
window.innerHeight: 795
window.outerWidth: 1006
window.outerHeight: 920
window.devicePixelRatio: 1
navigator.userAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36 Edg/
navigator.platform: Win32
navigator.language: en-US
screen.availWidth: 1920
screen.availHeight: 1040
screen.width: 1920
screen. Height: 1080


If those books are epub I would open them in Sigil and see if there is some corruption preventing them from loading properly. I use that application to change covers and descriptions for my collection. When you open a file it tells you if there are errors and where they are, and can autofix some errors.


Thanks Matthew

You were right

Opening the epub in Sigil showed some errors that Sigil corrected

I just needed to save the epub, launch a scan and it worked !!

Many thanks