Lovable's engineering team discovered mysterious connection failures in their Google Kubernetes Engine infrastructure. Their AI debugging agent helped identify that anetd pods (Google's Cilium implementation) were restarting constantly due to a concurrent map-access panic in the WireGuard module, causing networking instability for their high-volume sandbox environment.

Working with Google's support team, they initially disabled transparent node-to-node encryption to stabilize the system. The issue traced to Google's integration code managing WireGuard connections, not the protocol itself. This collaborative debugging session revealed a vulnerability affecting clusters with frequent pod creation and deletion.

After fixing the initial WireGuard crashes, the team discovered a secondary issue: an MTU mismatch between nodes with and without the restart. Some nodes still used the 1420-byte MTU for WireGuard encryption while others had reverted to the standard 1500-byte Ethernet MTU, causing inconsistent Valkey connections across the cluster.