Engineer not credited for the Dredge kill.
I’ve probably killed the Dredge over a hundred times since I started running WB’s on a nightly basist. I’ve parked my engineer at the Dredge site and have had occasional problems in recent months , getting worse about the time the holiday patch came in, and now it’s really bad.
Almost missed that in your description but the problem is the bolded part. Parking a character at a world for too many runs(not sure one the exact count) will result in that kind of issue. It can be avoided by doing other events in between.
ANET counts the number of times you do the same event in a row? That’s to prohibit what hard to imagine exploit?
I have several characters, and tend to park some where a WB fight is short duration, and the run in from the zone in WP is long. That way if I am coming in hot from another fight, I shorten the lost time by avoiding the run in. The Dredge meets that criteria. However, I do others like that (i.e. Fire Shaman) without the same failure but on different toons.
Your explanation doesn’t cover the cases of the last week. 4 kills the same night, the last one resulting in the event and bonus chests. He never left the campsite between. I have multiple examples of that with the Eng/Dredge combo.
I know it’s something other than failure to compete in the fight the required time or energy, and it’s not D/C since I get the champ chest. Perhaps, since there’s no merchant nearby, I don’t even bring him out for days until bag overflow forces it, and perhaps it’s duration of the camp, not number of runs. I’ll pull him out nightly and clear his bags and see if that clears it up.
I have no idea what the exact algorithm is. That has never been mentioned and probably never will.
The restrictions were added when the bonus chests first introduced. At that time it was not per account but per character.
I believe its diminishing returns your talking about, and it should not affect daily event rewards as far as I am aware.