Hello Vadym and thank you for reaching out to us with your enquiry.
The behaviour you described looks to be a bug, but an PM of ours will check and come back with additional indications.
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...