PEX Logging Errors

[Registered]

I enabled the logging below and then start to see error messages for ipv6. Is this related to ut atm unable to get IP string info for ipv6 or is it indication of ipv6 unable to connect. Is there a test or setting to change that can test if ipv6 connection data are been received and sent without errors from ut.

'Peer Traffic Logging - Log PEX'

Logging Output
Extension: ipv4:[IP] File
Extension: ipv6:[ < ERROR > ] File
Extension: ipv4:[IP] File
Extension: ipv6:[ < ERROR > ] File
Extension: ipv4:[IP] File
Extension: ipv6:[ < ERROR > ] File
Extension: ipv6:[ < ERROR > ] File
Extension: ipv4:[IP] File
Extension: ipv6:[ < ERROR > ] File

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I have this set but have set to true to make sure it wasn't a bug same as above no change.

'Preferences - Advanced'

net.disable_incoming_ipv6 false

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I have a ipv4 connection but should also be connecting to ipv6 both directions in-out. Though there is this setting I guess maybe only needed for those with ipv6 connections. Or is it meant to be installed for all connections (inc ipv4) who prefer to connect also to ipv6 connections

'Preferences - General'

Install IPv6/Teredo

The Install IPv6/Teredo button makes µTorrent install IPv6/Teredo support on the computer. Note that this option works only on operating systems released after Windows XP with at least Service Pack 2 (SP2) installed.

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Or is there any other ut settings that controls this that be changed for these ipv6 errors.