Cannot drag and drop a slide to change its position in a presentation any more. It does not work in the slide side pane nor in the slide sorter. Detected on LO with GTK+3 on Fedora 22. Version: 5.1.0.0.alpha1+ Build ID: c3822aa796616b64b040559c537ee4dcc786f249 There are other dnd issues reported in GTK+3 but I could not find this particular one. Caolán may already know about this problem, sorry in that case for the noise O:)
Drag & drop isn't implemented in GTK3 at all, as noted here: http://lists.freedesktop.org/archives/libreoffice/2015-September/070304.html *** This bug has been marked as a duplicate of bug 93054 ***