New Error In Logs Related to MTU Discovery

[Slow-poak]

Afternoon, I updated to the latest version of Gluetun on Unraid yesterday morning and noticed that there is a new error in the logs that I have no seen before.

026-02-20T13:04:22-05:00 INFO [openvpn] TUN/TAP device tun0 opened
2026-02-20T13:04:22-05:00 INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2026-02-20T13:04:22-05:00 INFO [openvpn] /sbin/ip link set dev tun0 up
2026-02-20T13:04:22-05:00 INFO [openvpn] /sbin/ip addr add dev tun0 10.25.0.55/16 broadcast +
2026-02-20T13:04:22-05:00 INFO [openvpn] UID set to nonrootuser
2026-02-20T13:04:22-05:00 INFO [openvpn] Initialization Sequence Completed
2026-02-20T13:04:22-05:00 INFO [MTU discovery] finding maximum MTU, this can take up to 6 seconds
2026-02-20T13:04:22-05:00 INFO [MTU discovery] setting VPN interface tun0 MTU to maximum valid MTU 1171
2026-02-20T13:04:22-05:00 ERROR [MTU discovery] setting safe TCP MSS for MTU 1171: getting VPN route: VPN route not found: for interface tun0 in 16 routes
2026-02-20T13:04:22-05:00 INFO [dns] downloading hostnames and IP block lists
2026-02-20T13:04:23-05:00 INFO [dns] DNS server listening on [::]:53
2026-02-20T13:04:23-05:00 INFO [dns] ready

The container looks to be operating normally but have never see this before. Any help would be greatly appreciated.