I found a void opal hotspot in a pristine system and got a decent amount of void opals and some other minerals. Sold them off and then logged off for a couple of hours. Came back, logged on and went back to the same hotspot. After an hour, nothing. Not a single core asteroid. Really? Does this make any sense? Has anyone else seen this? I guess I should have tried to relog, but did not think of it at the time. Knowing this game, relogging several times may fix it.