I am not able to add member in Master IP group

Background Information: If the range to detect has a "port" in it, the GUI take it as an IP instead and will throw an exception.

Temporary solution:
1. From the GUI, remove all port numbers from the range to detect. In this case, remove the "src port 8080" from the range.
2. Go to IP group to add new IP members.
3. After all members are added, put back the port numbers to the range to detect.