Recently I've encountered a problem with the Mastodon app, Tusky and even opening my Mastodon instance in Firefox where images do not load. I get a broken image link icon for all images in posts, user profiles and external link previews. I've made sure that all of the app's requested permissions are enabled, disabled 'Manage app if unused', and enabled 'Exploit protection compatibiliby' for the apps but the problem continues. I've checked on my work phone which is running on Samsung flavor Android and the apps work fine there so I'm thinking there is something with the setup on GrapheneOS that might be causing the issue.