The best time to register for DrupalCon Dublin is now. Earlybird discounts end July 29.
HiThis look's like a File Field Path bug, isn't it ?
I wouldn't necessarily say it's a bug with File (Field) Paths, it's respecting Drupals file size settings when trying to move the file.
However, I would think in this case that this issue is related: #1572206: Is it possible to disable FFP for a certain field?
Drupal is a registered trademark of Dries Buytaert.