it's possible to tell which is the source IP and destination IP of the ping?
According to your configuration you allow traffic from 10.10.14.1 towards any host from 10.10.10.0/24 subnet and reverse. Anything else than this, is denied.
Please provide exact source IP and destination IP and checked whether the router is generating any session towards that destination. Run the following command while you are pinging.
display firewall session protocol icmp destination 10.10.14.x verbose