I keep loosing icons problem

I have recently purchased ObjectDock [I am already a fences, start, and groupy user]. I have multiple docs set up. The main one for what is running mainly: One for games, one for entertainment, one for utilities and one for productivity. I added icons to those by first loading the application and pulling the icon from the main dock to the dock I wanted it to be on. Then within a day I find a number of those dragged have just disappeared. Some stay. No reason to see a difference in what stayed and what went. That was during the trial. I thought fine trial. I then uninstalled and installed with a purchased key. Then recreated my docks. The same has happened within a day. No reboot or system update in that time. 

Advice please.