I am having a problem with one of my multi-input items. I set it up for 5 pictures to be selected for a DVD but the final selection only allows the client to select 4 items.
The reason for it not working was that input no 5 was set up for a text input -- this might have been for a caption or title?
Here is a screen shot from your price plan - I have highlighted the part that was set incorrectly for the purpose that you were putting it to.
Changing this to be available for "JPEG only" or "any image", then "Save All" to save the changes to your price plan will immediately rectify the issue.