Maintenance for the week of April 22:
• PC/Mac: NA and EU megaservers for patch maintenance – April 22, 4:00AM EDT (08:00 UTC) - 9:00AM EDT (13:00 UTC)
• Xbox: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
• PlayStation®: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
You may find normal nodes adjacent to the survey nodes in some places. A survey has six nodes (whatever type it is), so a seventh one is just a regular one in the same place. And on the same lines, if one of your six is a regular one, then you missed one of the real survey nodes.