I am getting consistent WL crashes when using genetic optimization on a set (folder) of symbols. I have tried different symbol sets and different strategies. All crash at end of run (presumably end of optimizing first symbol). Optimizing on a single symbol - no crash. Monte Carlo optimization on a set of symbols - no crash. WL Pro 6.6.13.0. Genetic Optimizer 2013.12. Also have Community Components 2013.12 and Performance Visualizers 2013.12, TASC Magazine Indicators 2013.12.1, Community Indicators 2013.11. Also NeuroLab, CandlePattern Rules, Heat Map, Extra Performance Visualizers (all current).

You didn't tell the key thing: it's happening in Raw Profit mode (only) when running portfolio backtests. [I've edited the thread title.] And as you could find out from our live bug list, this issue is already known:

Open Issues > Genetic Optimizer v2013.12 crashes for Multi-Symbol backtests in Raw Profit mode

Will be fixed in upcoming update.

Version 2014.1 with the bug fix has been released.

Thanks!