From what I remember, there was an update change which allowed characters to re-enter a boss map within given time frame (3 or 5min?) if the boss hasn't been summoned. I just entered my 2nd solo Papulatus but even before I could drop the crack etc, I lagged and DCed. I relogged immediately but pap map entrance says I have already entered twice and cannot enter. Is dc right after map entry not supposed to allow re-entry?
When entering the Papulatus map you may enter and exit as you please, until dropping the piece and summoning the boss. What might have happened is that when logging off inside the map it counted it as if you finished the boss and took you outside (therefore why you relogged outside the boss map and not inside). This is not a bug but a misfortune incident.
I'm pretty sure it happened within 20 sec rather than 2min as it barely took any time to get to the crack spot before I dced.