Thank you for your enquiry. I have tested this and it is indeed a bug. I would kindly ask you to report this bug according to our policy and I will make sure to verify it as soon as possible.
This is not the issue of upgrade SERP. But serverip.dat in this case contains the value: 192.168.88.12:1301, so this is local IP of the server with SERP.
Anyway I don't understand what do you me...
