After installing OpManager V7 Build 7200 I tried to perform a discover of devices using a specific range of IP address. I used the format where the octets did not have leading zeros, example 10.10.10.1, but this produces an error indicating invalid number. Using 010.010.010.001 works. once the devices have been discovered and imported, I then tried to import them into the user defined category and noticed that even though the IP address in the list to import was of the format without leading zeros, once imported into the required category that the IP address was of the format where 3 of the 4 octets had leading zeros.
Once the device had been imported for monitoring, they reported that they could not be polled and eventually the device would report that it was down as it had not responded to the last 5 polls, however the monitors were still collecting data and the device was still pinging using the Action/Ping.
I discovered that if you change the format of the IP address to remove the leading zeros from each octet, this resolves the problem.
I would suggest that there IP addresses are not handled consistently within the program.