GNOME Bugzilla – Bug 752129
Importing and inserting an invalid file to the timeline directly from Nautilus breaks future clip insertions
Last modified: 2015-10-20 07:48:24 UTC
Drag a video clip from Nautilus, then drag a pdf file (or whatever invalid file), and you won't be able to drag anything to the timeline afterwards.
Fixed by 617ff19bd1eb947b2e43f6dcacd595a5c4550166