gnome-mpv crashes on starting - lubuntu 18.04.4 live media (inc. installed versions)

A support request had me explore `gnome-mpv` on lubuntu 18.04.4 (i386)

I used the recent (RC) install media; and it crashes there too :(

I've tried this on a couple of boxes; occurs on each. It also occurs on a recent 18.04.4 QA-install too (hp dx6120mt; the install was kubuntu 18.04.4 where I added lubuntu-desktop. On the installed (dx6120) box when using KDE OR LXDE, `gnome-mpv` opens and sits there without issue (why it possibly wasn't noticed earlier), but crashes when a file is selected.

On normal 'live' tests programs are only opened & then closed (no files opened usually) thus why noticed so late. It maybe specific to type of files opened, but all files tried caused `gnome-mpv` to crash (i usually resorted to opening gnome-mpv from terminal as far quicker in testing files instead of navigating with gui).

I tested the same thing on amd64 and didn't have an issue there (unless it's box specific)

Failed on
dell latitude d610 (pentium m, 1.5gb, intel i915) - i386
hp dx6120mt (mini-tower, pentium 4 dual core, 3gb, winfast clone of nvidia 7600gt) - i386
ibm thinkpad t43 (pentium m, 1.5gb ram, radeon x300) - i386

No issue on
hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290) - amd64

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-mpv 0.13-1ubuntu1
ProcVersionSignature: Ubuntu 5.3.0-28.30~18.04.1-generic 5.3.13
Uname: Linux 5.3.0-28-generic i686
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: i386
CasperVersion: 1.394.3
CurrentDesktop: LXDE
Date: Wed Feb 12 04:31:21 2020
LiveMediaBuild: Lubuntu 18.04.4 LTS "Bionic Beaver" - Release i386 (20200203)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-mpv
UpgradeStatus: No upgrade log present (probably fresh install)