I am seeing short bursts of packet loss on a CCR1009 running RouterOS v7.21.2 that did not happen on v6. The issue shows up mostly during peak hours when several VLANs are active and NAT is in use. CPU usage stays below 40 percent and interfaces do not show errors, but pings to the gateway start dropping for a few seconds at a time. If I disable fasttrack the problem goes away, but overall throughput drops noticeably. I have checked firewall rules and connection tracking settings and nothing looks unusual compared to my old setup. Has anyone run into similar behavior on v7 and found a stable way to keep fasttrack enabled without these drops?