Google+ not working with proxy server since last update

Google+ on my device has stopped working since the last update. Every time, I get the message: Can't load data. Check your connection. All apps other than Google+ work absolutely fine. My device details are as follows: **Model:** Google Nexus 7 (2012) **OS:** Android 4.4.2 **Google+ Build version:** 4.2.3.56698342 **Edit**: I use a Wifi on a proxy server for connection, and that's when the problem arises. When on a direct connection, the app works fine. But on proxy server, it has stopped working since the last update. Prior to this update, the app worked fine even on a proxy server.