I know that Echo Raids spawn immediately after server save in different subareas and that they also have a chance to spawn whenever a creature is killed.
So far, I have found 27 Echo Raids in 27 different subareas, plus 3 additional Echo Raids that appeared after killing creatures.
However, during the Test Server, it was reported that automatically generated Echo Raids could respawn approximately 20 to 30 minutes after the previous one was activated. Was this information ever officially confirmed, and is it still accurate?
Can Echo Raids spawn in every subarea in the game, or are there certain areas where they cannot appear?
For example, I searched the entire Isle of Evil and did not find a single Echo Raid there. I do not know whether raids are unable to spawn in that subarea, but it contains Common and Uncommon creatures, so in theory it should be eligible.
Could the raids perhaps be spawning in inaccessible locations?
I know that Echo Wardens and activated Echo Raids disappear after 10 minutes. However, what happens to the Echo Raids that spawn automatically after server save but are never activated? Do they remain there until someone finds them, or do they also disappear after a certain amount of time?
