Given the following remote addresses and address ranges configured in a firewall rule:
13.110.220.0 - 13.110.222.200
13.110.234.124
13.110.234.126
13.110.224.0/20
13.110.230.0/24
Problem 1: Rule.RemoteAddresses only returns 2 IAddresses instead of 5:
13.110.224.0/255.255.240.0
13.110.220.0-13.110.222.200
Problem 2: NetworkAddress.TryParse() FAILS when trying to parse range 13.110.220.0 - 13.110.222.200
NetworkAddress.TryParse() FAILS when trying to parse range 13.110.220.0 - 13.110.222.200
The range 13.110.220.0 - 13.110.222.200 can't be converted to a single netmask which is somewhat understandable however not getting the full list of RemoteAddresses when such a range is in the rule's scope is definitely NOT ok.
This screenshot shows the address range from Iaddress, however NetworkAddress.TryParse fails:

Both issues are probably related to a range that doesn't align on a strict CIDR boundary
This is fundamentally problematic - FIrewall Helper is not returning the full scope of the rule - This is critical if there are many addresses in the rule's scope, especially if you update the rule with only a few addresses / ranges you think exist where there were previously many addresses / ranges
Given the following remote addresses and address ranges configured in a firewall rule:
13.110.220.0 - 13.110.222.200
13.110.234.124
13.110.234.126
13.110.224.0/20
13.110.230.0/24
Problem 1: Rule.RemoteAddresses only returns 2 IAddresses instead of 5:
13.110.224.0/255.255.240.0
13.110.220.0-13.110.222.200
Problem 2: NetworkAddress.TryParse() FAILS when trying to parse range 13.110.220.0 - 13.110.222.200
NetworkAddress.TryParse() FAILS when trying to parse range 13.110.220.0 - 13.110.222.200
The range 13.110.220.0 - 13.110.222.200 can't be converted to a single netmask which is somewhat understandable however not getting the full list of RemoteAddresses when such a range is in the rule's scope is definitely NOT ok.
This screenshot shows the address range from Iaddress, however NetworkAddress.TryParse fails:

Both issues are probably related to a range that doesn't align on a strict CIDR boundary
This is fundamentally problematic - FIrewall Helper is not returning the full scope of the rule - This is critical if there are many addresses in the rule's scope, especially if you update the rule with only a few addresses / ranges you think exist where there were previously many addresses / ranges