Help with "Edit Book" window not showing

[nnyljh]

Hi,

I am running the latest v4.14 on Windows 10. When I click on the "Edit Book" button, I can see a new window(blank) pop up but then it disappears within a fraction of a second.
Other windows like "Edit metadata", "Preferences" all show up fine.
I tried some of tips found in other thread like 'changing resolution', 'changing DPI', 'disabling antivirus/Defender', to no avail.

Below is the debug log, the last line just shows that the Worker Launch of the "Edit Book" window but nothing else. No error....

Any suggestions/thoughts from the forumers?

Thanks,
John

-----------------------------------------------------

calibre Debug log
calibre 4.14 embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 6, 3) && Chinese Text Conversion (2, 3, 4)
calibre 4.14 embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 6, 3) && Chinese Text Conversion (2, 3, 4)
Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 120.0 x 120.0
physicalDpi: 141.76744186 x 142.134715026
Using calibre Qt style: True
[0.00] Starting up...
[0.00] Showing splash screen...
[0.44] splash screen shown
[0.44] Initializing db...
[0.45] db initialized
[0.45] Constructing main UI...
[2.84] main UI initialized...
[2.84] Hiding splash screen
[23.83] splash screen hidden
[23.83] Started up in 23.83 seconds with 303 books
Worker Launch took: 0.12299990654

[kovidgoyal]

This will be because of graphics driver issues. Try updating your drivers, if that does not help, you can try disabling hardwar acceleration as described here: https://doc.qt.io/qt-5/qtwebengine-debugging.html

[nnyljh]

Hi Kovid,

Thanks for the quick reply. I updated the display driver as you suggested which didn't help. However it gave me an idea where I recall I have installed a program called "Duet Display", a software that allows an iPad to be used as a 2nd monitor and it was finicky with displays drivers and settings. I un-installed Duet and voila, the Edit Window now shows up fine!

Thanks for your help!
John