Avira Antivirus stops Status window in Module Admin

WIth FreePBX 12.0.36 (and earlier), when I update modules with Module Admin, the Status windows quickly freezes while updating. The update happens, but I can’t tell when it’s done or what the update did.

This does not happen with previous versions of FreePBX.

I finally traced it to Avira Antivirus software on the machine running the web browser (windows 7.) With Avira disabled, the problem goes away.

Any ideas as to what changed in the new FreePBX? It’s not a big deal, now that I know what the problem is.