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Thumbnails in CMO not working after upgrade


After we upgraded to EPiServer 7.5 and CMO 7.5 (I have updated to the latest version released last week) we can not see any thumbnails in the A/B-section anymore.

The error we get in the logs are:

ERROR EPiServer.Cmo.Cms.ThumbnailHandler.CmoThumbnailHandler.TryRequestPageThumbnail: Unexpected error during communication with remote thumbnail service
System.ArgumentException: Parameter not valid.
vid System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)
vid EPiServer.Cmo.Cms.ThumbnailHandler.CmoThumbnailHandler.GetImageFromStream(Stream stream)
vid EPiServer.Cmo.Cms.ThumbnailHandler.CmoThumbnailHandler.TryRequestPageThumbnail(ThumbParams thumbParams, Image& image)

Oct 27, 2014 9:46

Hi Henrik, no changes in configuration of thumbnails? This just started after upgrading to the new package release last week?

Oct 28, 2014 0:22

Hey Richly
No, this has been all the time since we upgraded to 7.5 a couple of month ago, but I have not started to use it until now because of the MVC-bug

Oct 28, 2014 10:59

I've seen a similar error in the past, but couldn't quite get a firm resolution on it. One guess is *could* be some security issue - 

Oct 28, 2014 21:49
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