Media Picker broken in 1.9?

Is there a problem with the Media Picker in version 1.9 of Custom Field Template?

I can’t seem to assign an image to a file field now. The picker appears but the image is not assigned to the field.

The symptoms are the same as a recent issue where the picker was not working for custom post types, but this applies to all post types.

I have tried out the picker on two different sites and it is working on neither.