I just upgraded to Alfresco Community 4.2.e and can no longer update the logo for the share through the admin console. When I try to upload a new logo file, the upload fails. I have tried this on an install that was upgraded from 4.2.d and also on a fresh install.
I am using Alfresco community version. I am trying to change logo from Admin-console -> Application but whenever I am trying it shows error "error occurred during upload of new content".
Upload the same image into any normal folder and check if the thumbnail and web-preview are working. If not, then you should check all the image magick related properties and make sure the paths are right, and if it works when used in the command line. Those properties are in the file alfresco-global.properties.