How to refresh "Image Size" ON SERVER

[Fog_Newb]

I thought I’d posted about this before but it doesn’t show up in my post history. After capturing an image, Image Size ON SERVER shows as 0 or sometimes 1GB/MB. All the partitions and other information were captured successfully in /images/[imagename] and are the correct size. Once the FOG server is rebooted, Image Size ON SERVER displays correctly.

Thank you