How to continue executing subpackages even after one of subpackage fails?

I have a package using Execute Package Task to call more than 30 subpackages. If one of subpackage fail I would like the rest of subpackages still run and finish the whole process. Is it possible? If yes, how to achieve it?

I have tried following but not work.

1. set MaximumErrorCount to more than 1 in subpackage level
2. set Propagate to False in highest level in the subpackage, i.e. I put all tasks in the Sequence Container and I set the Sequence Container Propagate to False

Thank you