Avast Internet Secutity - Firewall issues

[REDACTED]

I've manually added some program entries that I want to block from internet on all ports all the time.
After couple of days I went back in and found that all my firewall block entries are gone. Completely. I've never had this issue before, what might be causing it and how to prevent this from happening again.
Thanks

[mchain]

First thought would be a secondary user removed your settings?

You can back up your settings via General Settings>scroll down to the bottom.

You can password protect your av.  Just don't lose or forget the password.