speculatrix

Well it turns out it was indeed a server issue, and one it might be useful for others to know about.

I contacted the hosting firm Bluehost who said that the problem seem to lay in the /var/tmp/ and /home/<user>/tmp/ directories being “full”. (Not quite sure what that meant.) I deleted a whole bunch of unnecessary files and the problem went away. It’s all very strange because I didn’t specifically delete files in those dirs (I don’t even have access to /var/tmp/). But I was told that my deleting files had somehow magically cleared up the temp directories.

Whatever happened, I suspect it had something to do with temporary files somewhere blocking whatever WP was trying to do.

Thanks for the suggestion, but the file permissions are set to 755, both for /Uploads and the directories inside it. I’ve also found I’m having the same image upload problem on another domain on the same shared hosting account, so something has gone screwy with the hosting, I think. I’m putting in a ticket with Bluehost. But I don’t understand how a server config problem would affect one page but not others, so that problem remains.

Okay, managed to roll back to earlier version then updated to 4.0.2 and now all is well… we’re back!

I haven’t been able to try with the latest code because I’m having trouble FTPing into the server to remove the duff code. I’ll report back when/if that’s worked…

My hosting is on PHP 5.4.24, so 5.3 isn’t the problem.

Add one more: just updated to 4.0.0 and now all pages I try to access (including /wp-admin) are just returned as blank pages. Haven’t had time to check the server logs for error messages, but this update is clearly b0rked.