Falling our of map in DP

A lot of people are having the same issue.

When Tahabata Pyrelord has half of his health he starts casting Strike Down with Anger
After that some of us fall out of map and die or appear in the different corner of the map. Sometimes the game just freezes. But the main issue is falling.

It happens OFTEN, and actually fell out of map few times when killing spaller echtra.
But right now (yes this minute) we're unable to kill Tahabata, because we already fell out of map 2 times when beating Taha.

This problem should be solved as soon as possible!


If anyone has any suggestions how to avoid the problem when killing it please post them.