# Not seeing image previews in Win AIO 6.0.7 **URL:** \ **Category:** Help\ **Created:** [March 30, 2026, 2:38pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289 "2026-03-30T14:38:08Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![stuck](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@stuck](https://gramps.discourse.group/u/stuck)\ **Post date:** [March 30, 2026, 2:38pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/1 "2026-03-30T14:38:08Z")
I’m using Win AIO 6.0.7 on Win 11 Pro. My version of Gramps knows the media type image/jpeg but I can no longer see previews of images, all I get is a generic icon that looks like: ![image](https://global.discourse-cdn.com/free1/uploads/gramps/original/2X/c/c3cb8a9ce461d3c9943c65a9b0fbde279ab4efee.png) I’ve tried removing the media and adding it again but there is no change. Any clues? ---
**Author:** ![stuck](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@stuck](https://gramps.discourse.group/u/stuck)\ **Post date:** [March 30, 2026, 2:55pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/2 "2026-03-30T14:55:52Z")
I have rolled back to v6.0.6 and the previews are working again. ---
**Author:** ![DaveSch](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/davesch/32/40_2.png) [@DaveSch](https://gramps.discourse.group/u/DaveSch)\ **Post date:** [March 30, 2026, 6:19pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/3 "2026-03-30T18:19:45Z")
I am seeing no thumbnail generation on new pictures displaying the generic documents.png. Older pictures with an existing thumbnail generated pre-6.0.7 display normally. ---
**Author:** ![Nick-Hall](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/nick-hall/32/95_2.png) [@Nick-Hall](https://gramps.discourse.group/u/Nick-Hall)\ **Post date:** [March 30, 2026, 7:59pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/4 "2026-03-30T19:59:58Z")
I can’t see any bug fixes in v6.0.7 that relate to the thumbnailer. ---
**Author:** ![stuck](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@stuck](https://gramps.discourse.group/u/stuck)\ **Post date:** [March 30, 2026, 9:00pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/5 "2026-03-30T21:00:22Z")
Is it not more likely down to the problems with getting a Windows 6.0.7 build to work? ---
**Author:** ![dsblank](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/dsblank/32/3649_2.png) [@dsblank](https://gramps.discourse.group/u/dsblank)\ **Post date:** [March 30, 2026, 9:13pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/6 "2026-03-30T21:13:21Z")
I don’t think we have an official 6.0.7 installer for Windows yet. So yes. ---
**Author:** ![stuck](https://avatars.discourse-cdn.com/v4/letter/s/90ced4/32.png) [@stuck](https://gramps.discourse.group/u/stuck)\ **Post date:** [March 31, 2026, 8:57am UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/7 "2026-03-31T08:57:21Z")
Unless it’s been pulled, there is a 6.0.7 AIO installer on GitHub. I assumed therefore it was an official relesse, hence I used it. ---
**Author:** ![codefarmer](https://avatars.discourse-cdn.com/v4/letter/c/b9e5f3/32.png) [@codefarmer](https://gramps.discourse.group/u/codefarmer)\ **Post date:** [March 31, 2026, 5:58pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/8 "2026-03-31T17:58:29Z")
Please file a bug report so that the issue can be tracked down. Thanks. ---
**Author:** ![SteveY](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SteveY](https://gramps.discourse.group/u/SteveY)\ **Post date:** [March 31, 2026, 8:22pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/9 "2026-03-31T20:22:06Z")
Just to correct an earlier statement, there is an official gramps 6.0.7 release which is availble from both the gramps website and github. I can reproduce this problem using my own gramps 6.0.7 installation. The error shown in the console is ```python 2026-03-31 21:15:19.114: WARNING: imagethumb.py: line 99: Error scaling image down: Unable to marshal str as an array, use .encode() to convert to bytes ``` To reproduce the problem: 1. create a new gramps database 2. From the menu select Add \> Media 3. Select a supported media file No thumbnail will be shown on the right hand side of the dialog ![image](https://global.discourse-cdn.com/free1/uploads/gramps/original/2X/a/a35a3d17c8303c3f314baf5998f8e27e55d0266a.png) ---
**Author:** ![SteveY](https://avatars.discourse-cdn.com/v4/letter/s/85e7bf/32.png) [@SteveY](https://gramps.discourse.group/u/SteveY)\ **Post date:** [March 31, 2026, 8:35pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/10 "2026-03-31T20:35:36Z")
There is a proposed fix for this problem by @dsblank See [Fix imagethumb savev() passing strings instead of lists for array args by dsblank · Pull Request #2204 · gramps-project/gramps](https://github.com/gramps-project/gramps/pull/2204) I’ve confirmed that with this change on gramps AIO 6.0.7, thumbnail images are generated again. ---
**Author:** ![jeromro](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/jeromro/32/8581_2.png) [@jeromro](https://gramps.discourse.group/u/jeromro)\ **Post date:** [April 28, 2026, 5:52pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/11 "2026-04-28T17:52:22Z")
Seems that the problem has migrated to the linux version 6.0.8. (at least for me). I was using version 5.1 for a while. I just upgraded my system to Ubuntou 26.04 and managed to install a .deb most recent version 6.0.8. of Gramps. The image preview is not showing. When I clic on an external apllication is launched and show me the picture. The problem concerns also pdf, png and txt files. I have also a MS-Windows laptop. Version 6.0.8 correctly preview documents. ---
**Author:** ![emyoulation](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/emyoulation/32/67_2.png) [@emyoulation](https://gramps.discourse.group/u/emyoulation)\ **Post date:** [April 28, 2026, 6:24pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/12 "2026-04-28T18:24:21Z")
Please install any applicable thumbnailer addons (like the [WebP thumbnailer](https://gramps.discourse.group/t/webp-image-not-supported/8246/6)) and the [Thumbnail Generator](https://gramps-project.org/wiki/index.php/Addon:ThumbnailGenerator) addon Utilities Tool. Then regenerate the thumbnails. This will take some time if you have a large collection of Media object. Thumbnails are normally generated as Media objects are added to nibble away the process. So regeneration at a single gulp is a manual process. ---
**Author:** ![jeromro](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/jeromro/32/8581_2.png) [@jeromro](https://gramps.discourse.group/u/jeromro)\ **Post date:** [April 28, 2026, 7:18pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/13 "2026-04-28T19:18:45Z")
Dear Brian, Thanks very much for your quick and kind reply. I suspected that I needed to use a tool like that, but missed it. (I know RTFM) As you proposed,I tried the addon Thumbnail Generator Tool (generateur de miniature - I work in french). Unfortunately it did not work. I looked in the log file and got: 2026-04-28 20:52:58.316: WARNING: imagethumb.py: line 99: Error scaling image down: Unable to marshal str as an array, use .encode() to convert to bytes Invalid byte sequence in conversion input I just saw that there is another exchange of mail with this issue. I saw that you already proposed a solution. I will will read it carefully. Thanks for your help ---
**Author:** ![jeromro](https://yyz2.discourse-cdn.com/free1/user_avatar/gramps.discourse.group/jeromro/32/8581_2.png) [@jeromro](https://gramps.discourse.group/u/jeromro)\ **Post date:** [April 28, 2026, 8:09pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/14 "2026-04-28T20:09:22Z")
Dear Brian, Unfortunately, even your addon: ![Capture d’écran du 2026-04-28 21-45-53](https://global.discourse-cdn.com/free1/uploads/gramps/original/2X/3/329c62a1b45e06c73fa90295469153bb0977871f.png) Does not work. I get full of 2026-04-28 21:50:26.148: WARNING: imagethumb.py: line 99: Error scaling image down: Unable to marshal str as an array, use .encode() to convert to bytes Invalid byte sequence in conversion input The first warning/error in the log file (on the console) is /usr/lib/python3/dist-packages/gramps/gui/glade.py:57: PyGIWarning: GObject derived class Glade shouldn’t use **slots**. class Glade(Gtk.Builder): I don’t know if it is related. I managed to install version 6.0.1 on another linux computer (my laptop) which run well. So I will revert also to this previous version on my desktop expecting it to work. Anyway, thanks for help and assistance Regards, Robert ---
**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/gramps/original/1X/2ac1e712b7adf612e31ca08a55419f4cf37c0158.png) [@system](https://gramps.discourse.group/u/system)\ **Post date:** [May 28, 2026, 8:09pm UTC](https://gramps.discourse.group/t/not-seeing-image-previews-in-win-aio-6-0-7/9289/15 "2026-05-28T20:09:44Z")
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