I'm using 13.1 / php 5.5. I've created an image field in a tracker. When editing the item I can browse to an image and press save. Try as I might the image won't upload to /img/trackers or display. Feels like I am missing a fundamental here but I can't see what. The directory has the necessary permissions and nothing obvious in the apache logs.
Any clue please how to troubleshoot. Thanks in advance