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Old 07-09-2026, 05:58 PM   #1
ArtFlake
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Qt WebEngine Render process has crashed
Calibre, version 9.11.0 (a previous version exhibited similar)
I'm getting this error on some fairly large books (nature guides with lots of photos). Also getting temporary stalls when scrolling fast in most books.

"ERROR: Render process crashed: The Qt WebEngine Render process has crashed. You should try restarting the viewer."

Restarting the viewer doesn't help.

Dell Precistion T1700 Desktop
Microsoft Windows 10 Pro Version; 10.0.19045 Build 19045 (x64)
Intel HD Graphics 4600 (on mainboard), latest drivers from Microsoft installed

No problems with VLC or other video players.

Web searches haven't turned up much sinces about 2020.
Any fixes?

I didn't see a sub-forum for "problems" or "bug reports"
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Old 07-09-2026, 06:36 PM   #2
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Try safe mode and see what happens.
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Old 07-09-2026, 06:45 PM   #3
theducks
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How Much RAM in that Dell? You may be pushing the Availability and it is swapping to disk on that book.
VLC seems to run on almost anything, any age.
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Old 07-09-2026, 10:09 PM   #4
kovidgoyal
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Reboot in safe mode and see if the problem persists.
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Old 07-10-2026, 01:14 PM   #5
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Quote:
Originally Posted by ArtFlake View Post
I'm getting this error on some fairly large books (nature guides with lots of photos). Also getting temporary stalls when scrolling fast in most books.

"ERROR: Render process crashed: The Qt WebEngine Render process has crashed. You should try restarting the viewer."

No problems with VLC or other video players.
I'm not quite following why "other video players" working would be relevant to a QtWebEngine browser crashing when rendering large books with "lots of photos."
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