Discord snap: Gibberish (blocks) instead of text in file chooser

Hi, I’m using Discord snap. When I tried to update my avatar or download 2FA backup codes, the file manager shows blocks instead of text. There is no issue when using web app. See screenshots below.

Discord snap:

Discord web:

It has following connections.

sai@hirsute:~$ snap connections discord 
Interface                 Plug                            Slot                             Notes
browser-support           discord:browser-support         :browser-support                 -
camera                    discord:camera                  :camera                          -
content[gnome-3-28-1804]  discord:gnome-3-28-1804         gnome-3-28-1804:gnome-3-28-1804  -
content[gtk-3-themes]     discord:gtk-3-themes            gtk-common-themes:gtk-3-themes   -
content[icon-themes]      discord:icon-themes             gtk-common-themes:icon-themes    -
content[sound-themes]     discord:sound-themes            gtk-common-themes:sound-themes   -
desktop                   discord:desktop                 :desktop                         -
desktop-legacy            discord:desktop-legacy          :desktop-legacy                  -
gsettings                 discord:gsettings               :gsettings                       -
home                      discord:home                    :home                            -
mount-observe             discord:mount-observe           -                                -
network                   discord:network                 :network                         -
network-observe           discord:network-observe         -                                -
opengl                    discord:opengl                  :opengl                          -
process-control           discord:process-control         -                                -
pulseaudio                discord:pulseaudio              :pulseaudio                      -
removable-media           discord:removable-media         -                                -
screen-inhibit-control    discord:screen-inhibit-control  :screen-inhibit-control          -
system-observe            discord:system-observe          -                                -
unity7                    discord:unity7                  :unity7                          -
wayland                   discord:wayland                 :wayland                         -
x11                       discord:x11                     :x11                             -

How can I fix it?