Notification smallIcon must use a simple mono vector drawable, not a launcher mipmap. Launcher icons render broken in the status bar on many devices. - Added app/src/main/res/drawable/ic_notification.xml (simple info icon) - Updated both showReplyNotification and buildForegroundNotification to reference R.drawable.ic_notification instead of R.mipmap.ic_launcher Co-authored-by: M57 <hy4ri@users.noreply.github.com>