Comment 7 for bug 777599

Same problem here, but I don't know whether it happens due to some software or it is random. I normally work with libreoffice, firefox and thunderbird running simultaneously. But when it occurs, the only way I figure out to be effective to get the launchpad hiding working properly is, believe or not, dragging and dropping some e-mail from one directory to another in thunderbird window. For experience, I changed from the dodge windows mode to the autohide mode, to test I get the bug again.