Why is there no longer the arena map "tower defense"?

[Fausto]

Since 4 days that are chained "lake of fire" and "manhunt" without ever seeing the "tower defense" in arena. Is this normal? 
 

[Ollie]

Hello!
We removed this map from rotation for a while, because due to one bug it did not work correctly.
The error has now been fixed and tower defense may appear again.