Refresh node list returns 'missing signatures' error

[Starlawn]

Steps to reproduce

Just copy-pasted the code from official API docs(incubed_network.py): link

Expected behavior

It should return node list for incubed

Actual behavior

It returns an error about missing signatures(and actually there was no such error just few weeks ago)

System configuration

Linux Mint 19 x64 Python3.7

Incubed version

Incubed3.0.4

Request

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Incubed Configuration

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Chain

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[cerealkill]

Hi @Starlawn, thanks for spotting this problem! While investigating it, I notice it only happens on the görli network, and as it seems, some nodes are refusing to sign the block headers to enable the in3 client to verify the data source authenticity, hence the exception. We are investigating the issue, but meanwhile, the same script work with connecting to Ethereum mainnet, just try it by removing goerli like so:

import in3
client = in3.Client()
node_list = client.refresh_node_list()