vlc sometimes hangs when closing its main window

[Hadrien]

It happened while I was checking multiple video files in a folder from Nautilus.

Steps to reproduce:
- open Nautilus and double-click on a video file;
- vlc launches and starts playing the video;
- quickly close vlc.

vlc small icon stays on the top right zone of the top bar, I have access to the menu but quitting does nothing, and an attempt to show the window displays an empty white window. Sending SIGTERM does nothing.

I can reproduce it from the command line to:

/usr/bin/vlc --started-from-file /home/hadrien/video.mp4

then close immediately the window. Do it three or more times and vlc will hang.

It happened with mp4 files. I could not reproduce the behavior with mkv and webm files.

vlc version: VLC media player 3.0.8 Vetinari (revision 3.0.8-0-gf350b6b5a7)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: vlc 3.0.8-4
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 12 18:40:33 2020
InstallationDate: Installed on 2018-04-07 (736 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180403)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: vlc
UpgradeStatus: Upgraded to focal on 2020-04-04 (7 days ago)