batshitlazy Make sure you install Google Services Framework at a minimum from the "Apps" app in GrapheneOS, and then install Google Camera (uninstall and re-install if you have it installed at the moment).
If you've already done that and it still doesn't work, go to Settings > Apps > Google Camera and enable Exploit Protection Compatibility Mode and try again. It's possible that it has a memory corruption bug that hardened_malloc is catching.