Reported the exact same thing some time ago ([Bug?] Not all addresses are dialed), for me it was just a test (all my devices can use TCP) so I did not care too much, I mainly wanted to see how well QUIC works 
Reported the exact same thing some time ago ([Bug?] Not all addresses are dialed), for me it was just a test (all my devices can use TCP) so I did not care too much, I mainly wanted to see how well QUIC works