I am seeing the same behavior. I found that if I focus the search in Oneview to a specific device (or a small group of devices) I am able to find the IP address in a search.
Could this be that Oneview is crashing and halting on errors, but the Java console continues? I *always* get that message indicating that there were errors, because I have a lot of strange devices in my list (like Liebert UPS's). Of course, I don't get those messages if I focus on a switch group.
Can anyone else with the problem see if Oneview works, if you select the specific switch (or switch group) that contains that device?
I am running the latest and greatest Netsight, 8.0.3.53.