No video preview Ubuntu 20.04

[Uup115]

The appimage video preview isn't working:

Yes, I have the plugin:

sudo apt search gstreamer1.0-gtk3
Sorting... Done
Full Text Search... Done
gstreamer1.0-gtk3/focal-updates,focal-security,now 1.16.2-1ubuntu2.1 amd64 [installed]
GStreamer plugin for GTK+3

[JoseOlin]

It's also happening on Linux Mint 21.1, which is based on Ubuntu 22.04.

gstreamer1.0-gtk3 is installed.

The app creates the GIF correctly, but there is no preview.

[mxyzplx]

Is it the same as this issue?

[JoseOlin]

Is it the same as this issue?

Yep, I think so.