Weird IP showing up in logs for Redis client in Go

Question

Recently in one of our k8s deployments we are seeing a weird IP showing up in our logs. This error log is related to one of our services which is using the go-redis. Here is the body of the error log:

"jsonPayload":{
        "action":"HotStorage.Find",
        "error":"dial tcp: lookup 10.16.126.2.17: no such host",
        "event":{
          "caller":{
            "file":"/go/src/xxxxxxxx/repository/redis/invocations.go",
            "function":"xxxxxxxxxx/repository/redis.(*HotStorage).Find",
            "lineno":227
          },
        }

The weird thing about that message is that it's trying to connect to a 5 octet IP address which is obviously invalid. Actually that IP has an extra .17 at the end and rest is the correct address of one our Redis pods and this was not the first time this has happened.
During one occurrence I logged into one of the pods that was having this issue and tried to resolve the IP of the Redis pod manually using ping and it returned the correct address (with no extra parts). And it's good to note that we are using k8s hostnames to find our pods.

Note 1: It's always an extra .17 that messes up everything. Where is it coming from and why that number?

Note 2: We are using golang:1.16.3-alpine to build our artefacts and alpine:3.12 image to run them.

I'd be tremendously grateful if someone could help me or point to a direction for me to keep looking.