I kept getting the red exclamation mark on my chrome plugin. I tried to uninstall it and then reinstall. Now when it asks for my master password, it starts "syncing" and counting up. I only have 108 items in my database, and as you can see this is almost up to syncing 300 items. I let it go till over 500 and then closed out. It does this every time that I try to enter my master password into the browser plugin.