Thread:Project:Support desk/mw 1.20.2 thumbs not displayed but while uploading

Hej there,

I upgraded and switched from MediaWiki: 1.8.2 PHP: 5.2.17 (cgi-fcgi) MySQL: 4.0.27--maxd0-log to

MediaWiki 	1.20.2 PHP 	5.4.11 (cgi-fcgi) MySQL 	5.0.96-log

I face the problem that thumbs of uploaded pics don't show. Interestingly they are shown in the uploading process (&gt div id="mw-upload-thumbnail" class="thumb tright"&lt) but not later.

When I expect a thumbnail to be shown the debug log shows

and

the page shows "Fehler beim Erstellen des Vorschaubildes: Die Miniaturansicht konnte nicht am vorgesehenen Ort gespeichert werden".

What can I do to get the thumbs back?

Which additional information should I provide?

thanks in advance cheers Nutt