With the latest build 134, if I use an "Optimize" task into a workflow with the type "Sequential", when I start the workflow the task is altered: The symbol, timeframe and dates are automatically modified by SQX. The time frame is always reset to D1, the symbol to EURUSD and dates to the full period available for the symbol.
You can reproduce with this protocol:
1) Load the project workflow found in attachment
2) Load one strategy into the Results (any strategy)
3) Check the optimisation task data: you should have GBPUSD_M1/H1/2014.01.01-2019.12.31
4) Start the workflow
5) Check the optimisation task data: now it's reset to EURUSD_M1/D1/2003.5.5-2020-3-19
As the task is altered before it's executed, of course, the optimised strategy is wrong.
Many thanks for your help, I look forward to using this promising feature in my projects :-P