I have noticed the Viewrendered pane lose live-render and become static.
To observe open leo file, and run vr.
The vr pane opens, attached to leo, and not floating.
Hover over a splitter, 'right-click> remove 1 Right'. The vr pane closes.
Now run vr again, and the vr pane opens in a floating window. However this floating window is static, and does not live-render.
Closing the file and re-opening does not restore the live-rendering. You need to close Leo and restart to restore the live-rendering on that file.
To be clear - live render still works on files which have not run 'right-click> remove 1 Right' command.
Leo Log Window
Leo 5.4-devel, build 20160412153848, Tue Apr 12 15:38:48 CDT 2016
Git repo info: branch = master, commit = 77fb1a11591d
Python 2.7.11, PyQt version 4.8.7
Windows 7 AMD64 (build 6.1.7601) SP1
Regards
Lewis