Asset previews not showing, new uploads do not work

Hi,

As the title suggests: Asset previews not showing, new uploads do not work

I can re-use old assets still.

Here is my diagnostics output:

Perch: 2.5.2, PHP: 5.5.3, MySQL: 5.5.33, with PDO
Server OS: Darwin, apache2handler
Installed apps: content (2.5.2), assets (2.5.2), perch_blog (4.1), perch_forms (1.7)
App runtimes: <?php $apps_list = array( 'content', 'perch_forms', 'perch_blog', );
PERCH_LOGINPATH: /perch
PERCH_PATH: /Users/adammenczykowski/Sites/TPMC - Stanmore/dev.stanmoreltd/perch
PERCH_CORE: /Users/adammenczykowski/Sites/TPMC - Stanmore/dev.stanmoreltd/perch/core
PERCH_RESFILEPATH: /Users/adammenczykowski/Sites/TPMC - Stanmore/dev.stanmoreltd/perch/resources
Image manipulation: GD
PHP limits: Max upload 32M, Max POST 32M, Memory: 128M, Total max file upload: 32M
Resource folder writeable: Yes
HTTP_HOST: dev.stanmore
DOCUMENT_ROOT: /Users/adammenczykowski/Sites/TPMC - Stanmore/dev.stanmoreltd
REQUEST_URI: /perch/core/settings/diagnostics/
SCRIPT_NAME: /perch/core/settings/diagnostics/index.php

ps Assets is not a clickable category when listing a post on this forum.