IPSEC Fortinet. multiple subnet . Problem

Hi.

I have created a Ipsec VPN. We have multiple Subnet. This subnet has been configure in Phase2 of Fortigate

In mi mikrotik config

Ipsec - Policy =>

10.1.0.0/16 => 10.206.118.128/25 - unique
10.1.0.0/16 => 10.206.152.0/23 - unique
10.1.0.0/16 => 10.253.76.0/22- unique

Total: 7 Subnet. Now, the problem is… I can’t raise more than 4 simulte tunnels.

when I raise 4, I start losing packages in the rest. Why???

We have license “P10”