trusted vendors list lost vendors

I have problem with CIS last version 4…920.
OS - Windows 7 x86
Antivirus - Free Avira 10
CIS Proactive, Defense+ = Clean PC Mode, Firewall = Safe Mode, Sandbox disabled, Comodo antivirus not installed.
After using cis some days, i see that defense+ warning me about every software action, for example firefox browser, then i see that trusted vendors list is empty, but it was full with vendors.
After diagnostics repair and restart list is full again and this problem repeated after some time.

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yeah I noticed that also it has happened on two of my computers already. It’s very weird, it could be something to do with the update process? I hope the devs see this and address it becasue it’s a very important part of CIS.