Plantera help!

[DoubleDown13]

I cannot beat plantera. Half way through the battle, it keeps dissappearing. No matter what I do, poof it is gone. Anyone else with this issue?

 

[darthmorf]

Most bosses will despawn if you get too far away - could this be the problem?

Another player has reported a similar issue - please discuss this further in that thread as it's in a more relevant section:

http://forums.terraria.org/index.php?threads/issues-with-plantera.45891/