Blue0 Interface gets Orange0

I have configured Red, Green and Blue Interface and I’m running OpenVPN, IPSec and Proxy. From time to time my IPsec Tunnel Routing stops working and checking my interfaces on SSH shows that the Blue0 Interface has disappeared and I have a orange0 Interface which is not configured in the setup. After running setup and changing the IP in the Blue Interface to a different IP and restarting the network service the blue0 Interface is back and my IPSec Routing also works. What kind of bug is this? Anybody has a idea how to fix this?

Thanks
Stefan

Could you post your hardware.

When it happens. like after a restart? .