Tap the button in the top right corner of the MLS group chat to view the group details, where you can see the relays being used. Keychat automatically uses all of the user’s relays as the group relays by default. If a new member isn’t connected to the commonly used relays, they may not receive messages from other group members. Maybe we should consider including the group’s relays in the welcome message, so that new members can decide whether to add them.