Problems with "autosandbox"

I have installed Comodo firewall without Comodo antivirus just for testing purposes.I have “proactive” security.
I run an unknown file and Comodo stopps it to be installed with “hips” warnings.
The file is not automatically run in the sandbox. Why???

If i do the same procedure with CIS completely ( firewall and antivirus), the unknown file is automatically run in the sandbox.

Why is there a difference?

Thank you very much in advance for helping.

I look forward your answers.