took a flight path into felwood. while in flight at 1:20am several minfernals showed up on my mini map in shatter scar vale. upon landing and flying feverishly over there, every spawn was gone. i saw no other player in the area, and the weather was clear. perhaps this area is phased?
i intend to now take any and every quest i can find in this zone in the hopes of unlocking whatever i may need to unlock.
update: 2:26 am, completed all quests in whisperwind grove and bloodvenom falls. left zone and flew back in on flight path. again, 6-8 spawns showed up on my minimap, and upon landing, vanished. i will keep questing, but i suggest asking around. see if anyone has actually gotten one. it might be the zone itself is having an issue.
i also noticed this type of thing happened in arathi, while on the flight there were dozens of tiny twisters on the minimap. upon landing there were only 2. i did not count that as a glitch because there were two other people there and i took time out to type here before making it over the ridge to the circle. (playing alliance)
and in wetlands, about 5-6 tiny bog beasts on the map but only 1-2 actually there upon landing.
Update: i have completed every available quest in felwood now, and nothing has changed. they still appear on the minimap while on a flight path, and only when coming in from another zone, but cease to exist upon landing.