I found that I could not connect to my wireless network with the Omega2+. My SSID is Shadow's Wireless IV. I investigated how the wifimanager script works and the problem is that it uses xargs (which cannot handle the ' character) and uci show rather than uci get (which have the same problem with ' and is also used for the password).
I've fixed wifimanager by removing these issues. I would request that the next firmware update include a script that can handle more special characters. (Either this version or another fixed version.) I don't have permissions to upload a file, so I have provided a copy here.