Heavy ghosting remains visible on sleep wallpaper

[Ashraf-Bashir]

Device

X4 Pro

Affected Version

1.5.1-RC4

EPUB Optimization

Yes, using the built-in web transfer EPUB optimizer

Cache State

All of the above

Describe the Bug

When the device goes to sleep, very heavy ghosting from the previously displayed page remains visible through the sleep wallpaper. This happens regardless of the Wallpaper Filter setting. I can reproduce it with both Contrast and None. The text and elements from the book page remain strongly visible behind the sleep wallpaper.

Steps to Reproduce

1. Go to Settings and set Wallpaper Filter to Contrast or None.
2. Open a book and display a page containing text.
3. Put the device to sleep.
4. Observe the sleep wallpaper.

Expected Behavior

"Expected behavior*
Entering sleep mode should perform a full refresh so that the wallpaper is displayed cleanly without visible remnants of the previous screen content.

Actual behavior
Heavy ghosting from the previously displayed content remains visible on the sleep wallpaper.

File Provided

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Relevant Log Output/Screenshots

[Ashraf-Bashir]

Similar report on Reddit
https://www.reddit.com/r/xteinkereader/s/ysG5labYfL

[mirwena]

Not sure about screen type - ordered around 10/08. Also heavy ghosting.

[AchillesPDX]

Having this same issue on my newly-purchased X3 as well. It will look fine for a few moments and then the whole screen starts reverting to a blotchy gray and showing ghosting of the previous page. It doesn't happen every time I sleep the device though, only sometimes. Real odd.

[AchillesPDX]

Having this same issue on my newly-purchased X3 as well. It will look fine for a few moments and then the whole screen starts reverting to a blotchy gray and showing ghosting of the previous page. It doesn't happen every time I sleep the device though, only sometimes. Real odd.

v1.5.1-d90e7f6-RC