Bungie is actively tracking this general networking error. Your disconnect was reported the moment it occurred. If you continue to receive this error, please consider following the suggestions in our Network Troubleshooting Guide.
Players may encounter error code SQUID when attempting to join players with conflicting Cross Play setups. Xbox and PlayStation players who have Cross Play currently disabled will be unable to join fireteams with players who currently have Cross Play enabled, even if they are on the same platform. To learn more about Cross Play matchmaking pools please click here.