BPF: Parallel Activities

Hello.

I am creating a BPF and need to create some activities that must be performed together in parallel mode, by different performers.

I'm using Criteria Opening with the Matched option checked, but the following error occurs when saved my Template: BPF: Validation: Previous activity has matched in the context 2GEREXFORN.

Does anyone know any solution or workarroud for that matter?

Thanks.

Augusto Sabino