Subtitles make the screen blink green under X11 in Totem

[Samuel-Schlemper-Schlemuel]

Pop!_OS 22.04 LTS

org.gnome.Totem 43.0 stable branch

Issue/Bug Description:

When a video in .mkv (I didn't test with other formats) with subtitles is with the subtitles activated the video blink green

Doctor.legend.error.mp4

Steps to reproduce (if you know):

Get a .mkv video with subtitles, activate the subtitles, open this in the Totem video using the xorg window manager, and run the video until appear a subtitle

Expected behavior:

The screen didn't blink green

Other Notes:

Hardware: Acer Aspire A315-56

Type: 64 bits

Language: BR Portuguese

GNOME Version: 42.9 (but I uninstall the app and install the more recent version on flathub)

Window system: X11 (in wayland everything occurs well)

The videos works well in VLC and Celluloid in the xorg and wayland

The video driver is "i915" with a "Mesa Intel® UHD Graphics (ICL GT1)"

Totem version: 43.0 stable branch

VLC, Celluloid and Totem are installed with flatpak

The app was tested in the english version too, and the error continue

The error is in the Totem issue tracker too: https://gitlab.gnome.org/GNOME/totem/-/issues/630#note_2318897