there is corona interactive render freeze, crash when using multiscatter 1.3.5.6. i was using earlier version of multiscatter and it was the same. i was using 3ds max 2014. and 2016 - it is the same bad result. so i gues its a bug in corona , its not able to update changes parameters of multiscatter in interactive renderer.
when i edit multiscatter objects color, or any other map in material editor - corona interactive freezes, an i g=have to force shut down max.
should be fixed now!