After upgrading to 3.6.1 I no longer see my previously entered events in the back end. Everything is displaying correctly for browsers. I have deactivated all other plug-ins. No luck.
I restored my plugins to pre 3.6.1 and attempted the plugin update again. Now everything is working. Because this is the second uptime an update did this, I’m a bit nervous about the future. But for now things are fine. Thanks.