I'm developing a WordPress website (countrycamper.com.au) using a Bold Theme template. I noticed that the site is running very slowly and when I disable the Metabox plugin, things speed up.
With the Metabox plugin enabled, if I open the media library, I see lots of '404' errors for each thumbnail it's trying to load. Disable Metabox and the whole things run just fine.
Same behaviour if I load a Page in admin mode with a Metabox form at the bottom.
Any ideas about what could be causing the problem? It seems linked to the Metabox plugin.