I'm using the Feeds and Feeds XML XPath Parser modules on Drupal 7. While there is no problem importing all other fields (Title, body, etc.), it does not populate the image field in my nodes.
Feeds debug mode shows all paths to be relative, so I'm using Feeds Tamper to rewrite the relative paths to absolute paths (all on the same domain). Still, no images are being saved.
There are no errors displayed on the import page, nor in Drupal logs.
UPDATE: After some more altering the image paths via Feeds Tamper, now the following error is shown in the logs: Invalid enclosure ""
Where should I start debugging this?