My bad, I x-posted this in IconPackager as I didn't see IconDeveloper forum.
https://forums.stardock.com/?forumid=169&aid=136259
The current version I'm using is 1.30.022. When working with icon libraries, double clicking on icon in the library results in an error (not common, but happens). This error is a standard memory error which when I see it again, I'll make sure to screen grab it. Generally this happens when I'm working with creating icons, or pulling images off of other icons. When it happens, the memory left unterminated is the exact size of the icon library currently open. I was not able to capture the issue with RegMon/FileMon/Process Monitor.
The leak is pretty big, especially if you are working with a larger icon library.