How can VLC be stopped from opening two windows for each video opened?

When I highlight multiple video files within Nautilus, right-click on them and open them with VLC, VLC proceeds to open two windows for each video, with one window featuring just the video and the other window featuring just the VLC controls.

This is a fresh Ubuntu 18.04 installation running the MATE desktop environment and the VLC settings "Allow only one instance", "One instance when started from file" and ""Integrate video in interface"" all are switched on. How might this two-window VLC behaviour be stopped?

The behaviour seems to be similar to that described here.

Tools => Preferences => Video => select full screen in display settings. That should fix it. Worked for me. Also in preferences => interface => tick both allow only one instance and use only one instance when started from file manager in playlist and instances