Topic/adding a background

Error: I've tried multiple fresh installs of mediawiki and bluespice but have not been able to get flexskin to work at all. What i'm doing is simply trying to add a background. The images directory has correct permissions as suggested in the installation procedure. I got no error messages but what happens is I click browse to upload an image(png) and then click upload to upload it. Nothing appears to happen. The background doesnt change and the Background image field is empty.

Solution: Please try the current sources from - https://git.wikimedia.org/zip/?r=mediawiki/extensions/BlueSpiceFoundation.git&h=refs/heads/REL1_23&format=zip - https://git.wikimedia.org/zip/?r=mediawiki/extensions/BlueSpiceExtensions.git&h=refs/heads/REL1_23&format=zip - https://git.wikimedia.org/zip/?r=mediawiki/skins/BlueSpiceSkin.git&h=refs/heads/REL1_23&format=zip