Unable to launch - opens a broken transparent window

[tom-james-watson]

OS - Ubuntu 20.04
Installed via: snap

Screenshot:

CLI output:

~ > flokk-contacts 
/bin/bash: warning: setlocale: LC_ALL: cannot change locale (en_GB.UTF-8)
libEGL warning: DRI2: failed to authenticate
[ERROR:flutter/shell/platform/embedder/embedder_surface_gl.cc(108)] Could not create a resource context for async texture uploads. Expect degraded performance. Set a valid make_resource_current callback on FlutterOpenGLRendererConfig.
[ERROR:flutter/shell/platform/embedder/embedder_surface_gl.cc(108)] Could not create a resource context for async texture uploads. Expect degraded performance. Set a valid make_resource_current callback on FlutterOpenGLRendererConfig.
flutter: /##################################################
flutter: [BootstrapCommand]
flutter: DataDir is: /home/tomw/snap/flokk-contacts/11/.local/share/flokk-contacts
flutter: ##################################################
flutter: FileSystemException: Cannot open file, path = '/home/tomw/snap/flokk-contacts/11/.local/share/flokk-contacts/auth.dat' (OS Error: No such file or directory, errno = 2)
flutter: FileSystemException: Cannot open file, path = '/home/tomw/snap/flokk-contacts/11/.local/share/flokk-contacts/twitter.dat' (OS Error: No such file or directory, errno = 2)
flutter: FileSystemException: Cannot open file, path = '/home/tomw/snap/flokk-contacts/11/.local/share/flokk-contacts/github.dat' (OS Error: No such file or directory, errno = 2)
flutter: FileSystemException: Cannot open file, path = '/home/tomw/snap/flokk-contacts/11/.local/share/flokk-contacts/contacts.dat' (OS Error: No such file or directory, errno = 2)
flutter: #########################
flutter: BootstrapCommand Complete
flutter: #########################

[tom-james-watson]

/home/tomw/snap/flokk-contacts/11 is just completely empty