Leaving before elite boss spawns completely resets

ABCZZT

Bug type: Functionality

Summary: Leaving a room after the WARNING! but before an elite boss appears
causes it to not appear, and the progress towards elite bosses goes back to zero.

Details: While hunting wild boars in the burning land with my new character,
the map spawned enough elite monsters to reach the "You feel something
in the darkness..." state. After that, I leveled up so far that I was out of range
to spawn more elites. I wanted to kill an elite boss for the V Tracker, so I
switched to another character to get more elites.

Every time I spawned an elite with the second character, the game crashed
when I tried switching back to the first. On the third elite, I missed the chance
to kill it because the game crashed again while I was logging back in. After that,
whenever I spawned an elite, I exited the room before switching characters.

That's what led me to leave the room when I heard the alarm blare
and saw the WARNING! message on the screen. I left as soon as possible,
and did not see the elite boss appear. When I finished switching back to the
first character, I was shocked to see that there was no elite boss there.

There was no way it could have appeared and been killed in such a short time.
The bonus stage wasn't there, and I could see a few items lying around,
left over from the second character's kills. And when I used the second
character to spawn another elite, and killed it with the first, I got the message
"The dark energy is still here. It's making the place quite grim."
That confirmed that the elite boss progress was completely reset.

Character name: Kaparlo
Character level: 47 when it happened
Character job: Battle Mage
World name: Broa

Date and time: December 9, 2016, 5:25 EST