I have found many task with duplicate PROPERTIES drawers. I saw mention on the list that, "...it will be invalid for a LOGBOOK to appear before PROPERTIES in Org 8.3."
It seems that tasks don't have properties by default, and if I LOG an item, I get a LOGBOOK drawer. If properties are added later (by touching the item with MobileOrg, or adding a property with "C-c C-x p", then PROPERTIES go below the LOGBOOK. I'm not sure what is going on to create the second PROPERTIES drawer. Has anyone else seen this? Any ideas what I am doing wrong. I've found many of these tasks manually. I haven't been able to search and list them progragmatically (I've been trying using grep and other shell tools on my Org files). Is there a way to list all tasks with duplicate properties, or all tasks where :PROPERTIES: is not the first item listed, if that is a requirement? Thanks, -k.