This is an attempt to organize bug reports for Kobo products. I hope in future a subforum for bugs will be created instead.

You can find here a list of Unconfirmed bugs, Confirmed bugs, ADE bugs and Solved bugs. You can also find a list of changes from previous firmware version (thanks to the patience of davidfor).

MOST IMPORTANT NOTE
If you want the bug will be fixed, you have to report it to the Kobo customer services: help@kobobooks.com. Send them bug reports even if the bug is already listed - the more the feedback the higher gets the fixing chance.
If your bug are confirmed as Adobe Digital Editions bug, please report report them also to the Adobe forum.


Before reporting:
Many bugs are caused by database corruptions. First try to reset the database as exaplained here.

How to report:
Copy & paste the bbcode below and fill the data (a test document will be appreciated ):
How to contribute:
First of all, I repeat, signal bugs to the official channel (help@kobobooks.com), even if they are already reported, and report ADE bugs also to the Adobe forum.

You can also contribute signalling other devices and firmwares that the bugs affect, confirming unconfirmed bugs and adding test documents and details.

Good debugging!
Unconfirmed Bugs

Bug: Back button in "advanced" font settings dialogue doesn't work
Device: Aura
From Firmware: 3.1.1

Bug: Library search not updated after book deleting
Device: Glo
From Firmware: 3.1.1

Bug: Previous location does not work if reference is a table or image
Device: Mini
From Firmware: 3.1.1

Bug: Kobo frezees when jumping to a character from ToC of a kepub with embedded fonts
Device: Glo
From Firmware: 2.8.1

Bug: Books on external SD are removed from home after reboot
Device: Glo
From Firmware: 2.6.1

Bug: Accumulation of EventType=9 in the Event database table slows down dictionary lookups
Device: Aura
From Firmware: 2.5.2

Bug: Screen is inverted with Solitaire + light
Device: Aura
From Firmware: 2.5.2

Bug: Some settings are lost after reboot
Device: Glo
From Firmware: 2.4.0
See also http://www.mobileread.com/forums/sho...25#post2578025

Bug: Return button in search not working
Device: Glo
From Firmware: 2.4.0
Confirmed Bugs

Bug: Non-text elements cause ghosting even after a complete refresh
Device: Glo
From Firmware: 3.2.0

Bug: Collections order can't be changed
Device: Glo
From Firmware: 3.2.0

Bug: [KEPUB] text between a font tag is wrapped, even if it's part of a word
Device: Aura HD
From Firmware: 3.1.1

Bug: Manually deleted books can't be readded
Device: Glo
From Firmware: 2.8.1

Bug: White spaces added between dashes and text if text is justified in kepubs
Device: Aura
From Firmware: 2.8.1

Bug: Can't connect to network that needs login after connection, or use the browser without a connection
Device: Glo, Touch, Mini
From Firmware: 2.8.1

Bug: Last opened book info is lost (sideloading)
Device: Glo
From Firmware: 2.6.1b (probably also the previous version)

Bug: Problems with "New Game" in Solitare + sleeping
Device: Aura
From Firmware: 2.5.2

Bug: Too much whitespace in the header and footer
Device: Aura, Glo
From Firmware: 2.5.1

Bug: No Booklover badge
Device: Glo
From Firmware: 2.5.1

Bug: PDF and CBZ/CBR doesn't refresh after scrolled
Device: Aura, Glo, Touch
From Firmware: 2.5.0 (fine in 2.4.0)

Bug: Basic html code doesn't work anymore in synopsis
Device: Glo, Touch
From Firmware: 2.5.0 (fine in 2.4.0)

Bug: Displayed percentage of bookmarks are 0% on book reopening
Device: Glo, Touch
From Firmware: 2.4.0

Bug: Several display and listing issues of annotations and bookmarks
Device: Glo, Touch
From Firmware: 2.4.0

Bug: Images and Cbz/Cbr can't be scrolled if you rotate and zoom fitting "width"
Device: Glo, Touch
From Firmware: 2.4.0

Bug: If an element has font-family: sans-serif, default serif font is used anyway with kepub and html files
Device: Glo, Touch
From Firmware: 2.4.0

Bug: Metadata: publisher name and ISBN code not displayed in book details (epub)
Device: Touch
From Firmware: 2.4.0

Bug: Chess board goes blank after playing check
Device: Glo, Touch
From Firmware: 2.4.0

Bug: Re-add a way to sort books by series, as well as title
Device: Glo
From Firmware: 2.4.0 (in 2.3.2 you can sort by series, but it was named "sort by title")

Bug: Sideloaded epub go back some pages on reopening
Device: Glo, Mini
From Firmware: 2.3.1

Bug: Incorrect rendering of long paragraphs
Device: Glo, Touch, Arc
From Firmware: 2.1.5
Confirmed Bugs - Adobe Digital Editions

Important! Report any bug in this section also to the Adobe forum

Bug: ADE doesn't honor dx and dy SVG attributes
From Firmware: 3.1.1

Bug: Text can be wrapped between a non-blank char and a dash in epubs
From Firmware: 2.8.1

Bug: If a special character is followed by a tag and a word and no whitespace, word is wrapped anyway to the next line
From Firmware: 2.5.1
Solved Bugs

*** Solved in 2.8.1 ***

Bug: Unexpected locale causes italic text to be displayed as bold with some fonts
Device: Glo
From Firmware: 2.2.0 (fine in 2.1.5)

*** Solved in 2.5.2 ***

Bug: Text in dictionary popup gets cut on the right (see also this post)
Device: Touch, Mini
From Firmware: 2.5.0

Bug: Small font size for japanese dictionary
Device: Glo
From Firmware: ?

Bug: Go back and change a search is broken
Device: Glo
From Firmware: 2.5.0? 2.5.1?

Bug: No price on buttons in Bookstore search
Device: Glo
From Firmware: 2.1.5?

Bug: Justification button is blank
Device: Glo
From Firmware: 2.5.0? 2.5.1? (fine in 2.4.0)
Firmware What's New (thanks to davidfor)

3.3.0, or "Don't Touch That Dial"
3.2.0, or "Waiting for Godot"
3.1.*, or "127 Hours"
3.0.*, or "Back to the Future"
2.9, or "Trick or Treat"
You're dreamin'
Bug: Several display and listing issues of annotations and bookmarks
Status: Confirmed
Device: Glo, Touch, Mini, (Aura)
Firmware: since the introduction of bookmark/annotation option
The PDF scrolling bug exists in firmware 2.5.1 for Aura.
Bug: Metadata: publisher name not displayed in book details (epub)
Status: Confirmed
Device: Glo, Touch, Mini, (Aura); General firmware issue for all devices
Firmware: never worked properly with epub
Kepub or epub: epub