Multiple activities "Execute SQL statement" in transaction

I have defined a process with multiple activities "Execute SQL statement".

Then, I noticed that when an INSERT SQL fails, and the other ones success, the transaction does not rollback all the statements.

I have configured the process as "short-lived" with transaction settings -> propagation = REQUIRES NEW, but it does not put in a unique transaction all the activities.

How can I do?

Thanks,

Fabio