v1.4 beta 21
Worked around inability to check for fb2k & components updates on Windows XP systems over HTTPS.
Fixed a bug causing splitter UI element to change sizes of locked panes.
Amended workaround for audio stutters on Windows 10 1803.
Made changing ReplayGain mode through menu commands / keyboard shortcuts restart playback.
Fixed FTP reader bug causing certain files to fail to play.
Restored borders of Default UI toolbar visualisations.