When I do ssh://foo/bar I do not get image thumbnails / previews.

I see tumblerd has about 0 % CPU usage most of the time. I've set Thunar to show previews Always (ie. non-local images too), and rebooted. I can see previews fine when opening local folders and when opening samba folders (smb://foo/bar). 

This happens from both my laptops, running tumbler 0.1.27-0ubuntu1 (13.04 raring).

I tried killing tumblerd and running /usr/lib/x86_64-linux-gnu/tumbler-1/tumblerd from a terminal, but got no output – how do I get an error log? 

I also tried rm -rf ~/.thumbnails, and then opening an sshfs folder with images. The ~/.thumbnails folder does not get recreated (until I enter some regular or smb folder with images).