Subitems are frequently disappearing for me and I may notice later that they have moved under a different parent.
It is not clear how this is happening, but I noticed once that an item in my ToDo list moved under a different ToDo item when I just clicked on it (no dragging). I am not able to reproduce it, but I would of course like to prevent this from happening.
I assume it has something to do how IQ interpret my mouse clicks..?

Has anyone else experienced this?