I have a custom content type, which contains a couple of link fields. With the development version, when uuid module is enabled, only when the particular node's Link field instance contains a URL, I am getting this notice:
Notice: Undefined variable: replacements in uuid_tokens() (line 95 of /home/dupo/public_html/drupal/sites/all/modules/uuid/uuid.tokens.inc).
This does not occur with the stable version, or when there is no URL value in the link field instance. It seems that something with UUID has broken.