Restoring Settings from a Previous Build

I just installed COMODO Firewall v6.0.258294.2626 BETA. This new version runs much better than the previous one (cmdagent is no longer stressing my cpu and memory). The only issue that I have is that when I saved (exported) the configuration from the previous version, I was not able to restore (import) it to the new installation. Interestingly enough, the program said that the settings were restored. This forced me to re-set up the firewall (settings, blocked programs, etc.). Is this a bug or did I do something wrong?