Hi,
I experience the same problem but I am using Hamachi + Haguichi on Ubuntu 16.04 LTS. My friend on the same network can ping me from their Windows machines but I cannot ping them.
I can ping 127.0.0.1 and my Hamachi IP(25.x.x.x) on my own computer.
I am aware of iptables but I find its configuration too complicated to use and it does not seem to have the ability to allow traffic to/from specific applications.
Any advice/help is much appreciated.