Comment 4 for bug 1029371

Yes, I have just tested on 15.04 and I still observe the issue, or at least this part:

> 2. On the desktop [...] if you simply move an icon (in which case the expected
> behavior would be for the icon to snap to the nearest position in the grid
> and stay there) you can also observe that the action is ignored and the icon
> goes back to its original position.

As in the original report, it happens randomly, and maybe not as often as I seem to remember it used to.

One note that may (perhaps) help in triaging the issue:
- I now have the Launcher always visible on the left (as opposed to auto-hide/show)
- When I observe the issue (i.e. I drag and drop a file on the desktop and it does not move to the destination position), I observe that the Launcher sort of "flashes" at the very moment I drop the file and it isn't moved (more precisely, icons that are not possible destinations for the dragged file in the Launcher get greyed out for a fraction of a second)
- When I do *not* observe the issue, EITHER I've done it so quickly that the Launcher didn't have time to change its status, OR it did completely, and application icons that are not candidates for accepting the drop have been greyed out for a while.

In my few tests I've just done, I have observed this coincidence all the times; however it may have been random.