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Old 04-29-2020, 11:01 AM   #3
DNSB
Bibliophagist
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Posts: 44,531
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by berwyn View Post
Hi Folks. Has anyone had experience with this issue -- or shall I file a bug report?

I upgraded from calibre 4.8 to 4.14 and suddenly the ebook viewer freezes forever every time I try to view a book.

It happens on every book in my library including new books.

I've downgraded back to 4.8 and the problem is still there! I've tried both 32-bit and 64-bit version. The problem still exists.

What can I do?

Screenshot:

https://drive.google.com/file/d/1L-E...w?usp=drivesdk
What OS are you using? There are known issues with QT5 which calibre uses and a fair number of Windows 7 video drivers and a smaller number of Windows 10 video drivers. If updating to the newest video driver doesn't help, you may have try a clean install of 4.8.
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