I converted a jpeg file to jpeg xl format.
The source and destination folder was the download folder.
I do not see a thumbnail of the destination jpeg xl file in download folder.
A swipe down does not refresh something.
I will see the file in xnview if I open it in device memory view.
If I switch to device memory and the download folder, I will see a thunbnail on the jpeg xl file.
So I think the download folder thumbnails do not correctly refresh.
v27 - download view - new jpegxl file - thumnail on file is black [Fixed]
Moderator: xnview
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masterjp
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v27 - download view - new jpegxl file - thumnail on file is black [Fixed]
Last edited by masterjp on Fri Aug 07, 2026 3:10 pm, edited 2 times in total.
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
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xnview
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Re: v27 - download view - new jpegxl file - thumnail on file is black
And you see it in Gallery app?masterjp wrote: Tue Aug 04, 2026 2:36 pm I converted a jpeg file from jpeg to jpeg xl format.
The source and destination folder was the download folder.
I do not see a thumbnail of the destination jpeg xl file in download folder.
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masterjp
- Posts: 665
- Joined: Fri Feb 13, 2009 4:37 pm
- Location: Duesseldorf, Germany
Re: v27 - download view - new jpegxl file - thumnail on file is black
I did the test again.
I converted a jpeg file from download folder (internal smartphone memory) to the same folder as jpeg xl 80% compression.
In gallery and folder view I see the filename and filesize, but the thumbnail is missing.
I can open the jpeg xl file in gallery and folder view and the picture is visible.
I converted a jpeg file from download folder (internal smartphone memory) to the same folder as jpeg xl 80% compression.
In gallery and folder view I see the filename and filesize, but the thumbnail is missing.
I can open the jpeg xl file in gallery and folder view and the picture is visible.
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
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xnview
- Author of XnView
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- Location: France
Re: v27 - download view - new jpegxl file - thumnail on file is black
All jxl files have no thumbnails or only these ones?masterjp wrote: Thu Aug 06, 2026 4:35 pm I converted a jpeg file from download folder (internal smartphone memory) to the same folder as jpeg xl 80% compression.
In gallery and folder view I see the filename and filesize, but the thumbnail is missing.
I can open the jpeg xl file in gallery and folder view and the picture is visible.
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Kadet
- Posts: 456
- Joined: Thu Oct 20, 2022 7:23 pm
Re: v27 - download view - new jpegxl file - thumnail on file is black
I also don't see JXL thumbnails when entering from some views. Only when entering via “Folders” and "Device Memory" I see these thumbnails.
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masterjp
- Posts: 665
- Joined: Fri Feb 13, 2009 4:37 pm
- Location: Duesseldorf, Germany
Re: v27 - download view - new jpegxl file - thumnail on file is black
On my Samsung device (Android 16) I do not see any thumbnails of jpeg xl files. So it is a general problem of all jpeg xl files.
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
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xnview
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Re: v27 - download view - new jpegxl file - thumnail on file is black
please check v31masterjp wrote: Fri Aug 07, 2026 9:36 am On my Samsung device (Android 16) I do not see any thumbnails of jpeg xl files. So it is a general problem of all jpeg xl files.
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Kadet
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- Joined: Thu Oct 20, 2022 7:23 pm
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masterjp
- Posts: 665
- Joined: Fri Feb 13, 2009 4:37 pm
- Location: Duesseldorf, Germany
Re: v27 - download view - new jpegxl file - thumnail on file is black
v31 fixed the problem. Great! 
PC: Intel 8700k + Asus Z370-F + 48 GB RAM Corsair+G.Skill + Asus RTX 3050 OC
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box
OS: Windows 11 Pro 64bit 25H2 |
GFX: XnViewMP 1.11.5 | Adobe Photoshop Elements 2024 + Elements XXL 11
Android 8-16: Samsung S7, S10, S23, TAB S7, S11, Ugoos AM7 TV-Box