[Build 119] Optimizer project not working as Custom Projects task

I have a very simple optimization task added to a Custom Project workflow and it doesn't seem to want to do anything. 


There really isn't anything special about the task configuration (see attached).


When I click start, this is all I see in the log:


19:25:58 Project finished 19:25:58 Optimize strategies : Task finished 19:25:58 Optimize strategies : ----------------------------- 19:25:58 Optimize strategies : All backtest data prepared 19:25:58 Optimize strategies : Data loaded from memory 19:25:58 Optimize strategies : Loading backtest data for Main test - EURUSD_M1 / H1 19:25:58 Optimize strategies : Initializing backtest data... 19:25:58 Optimize strategies : Starting optimization... 19:25:58 Optimize strategies : ================================