Hi Larry,
sounds strange. Could you please double check the configuration properties ?
In doubt, I would delete both platforms (you're loosing all collected data) create one, wait a while and create the other one. Maybe you can try to create them as a generic "Network Device". "Cisco IOS" platform is in fact a "Network Device" with some additional metrics. There have been some reports about problems with IOS devices, so you can exclude an error raised by the plugin.
Mirko