exporting PNG (with transparece) sequence of mersh animation


I did a animation using Mersh, but whem I’m trying to export a PNG Sequence, the mersh animation disappear, or not be render.

Have any solution for this problem?

first, you need install Quicktime software, it’s free.
second, you need edit the write module in Network view, change the drawing tape to PNG4 format.(notice: 4 means is RGBA four channel,A means is Alpha.)
third, press Ctrl+Shift+Y render network.
fourth, png sequence in frames folder of toon boom project file.