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Thumbnails of assets not visible in editorial backend

Vote:
 

I have an issue with the thumbnail preview of images in the editorial backend.

I have copied the database from the prod environment on my local machine. Now of cource, the images and thumbnails are missing. If I export the image-folder from prod I get an export.episerverdata file with all image data (blobs and so on). If I now import this file into my local environment, the data of all images is copied to App_Data\blobs to their respective [GUID]-Folders.

When I view the image in the editorial backend the thumbnail and the image are not shown.

Missing Thumbnail

Is there a Way to clear some BE cache or to tell the backend, to refresh the images from the blob-data-store?

As there seems no issue with new uploaded images and the same issue applies to updating the preprod DB with the prod DB.

New uploaded Image

#328706
Sep 03, 2024 12:36
Vote:
 

Hi,

Have you try to view that image in preview mode such as /globalassets/.../image.png yet? Could you see the image when browsing that image?

I do not think that you should do import like that when restoring db from other environment. Just do it simply by copying blob storage from PROD to blob folder locally

#328752
Sep 04, 2024 5:54
Vote:
 

Yes, I tried the preview. This gives me some "text-preview" als shown here:

The image is called by .../EPiServer/CMS/Content/siteassets/de-DE/media/frontify/images/discover/beach/familien-spass-am-strand-condor.jpg,,914_19845?epieditmode=true

and if I open this link in the browser it gives me the same "empty" image with just an alt text.

If I call the image by .../siteassets/media/frontify/images/discover/beach/familien-spass-am-strand-condor.jpg

I get: 0 Bytes back.

Other images, uploaded later, are working fine.

As Optimizely is running in the cloud, I do not have access tor the blob folder to copy it. Only access I've got is via https://paasportal.episerver.net/.

#328754
Sep 04, 2024 6:19
Vote:
 

Just try to make a support request to Optimizely support guys to ask for Blob copy in PROD. I do not think that you are importing assets via overriding existed assets

#328755
Sep 04, 2024 6:23
Vote:
 

Have you tried the Clear Thumbnail Properties scheduled job?

The description sais "Specify whether the clearance of thumbnail properties is active/inactive and how often the job should be run. The job clears all thumbnail properies to empty so that new thumbnail images will be created when be requested."

#328756
Sep 04, 2024 7:15
Vote:
 

Hi,

I do not think it is only about thumbnail because it happens with previewing, browsing orginal file as well. I think there is no found blob data relates to those files even after importing.

#328757
Sep 04, 2024 7:21
Vote:
 

I think, this is somehow related to some caching thing, as the blob flolders are existing, but the images are not revtrieved.

I also tried the Clear Thumbnail Properties scheduled job. But it didn't do the thing.

If I inspect an image, where there is no blob folder, I get an error in the log "the folder could not be found".

#328758
Sep 04, 2024 7:27
Vote:
 

if you upload a new image and try to preview it, what link would you get?

#328761
Sep 04, 2024 8:00
Vote:
 

The Link I get is:.../EPiServer/CMS/Content/siteassets/de-DE/media/frontify/images/discover/beach/testbild.jpg,,6135_46339?epieditmode=true

so it's nearly the same as the .../EPiServer/CMS/Content/siteassets/de-DE/media/frontify/images/discover/beach/familien-spass-am-strand-condor.jpg,,914_19845?epieditmode=true

#328773
Sep 04, 2024 11:44
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