airvpn push ipv6 on ipv4 only connection floods log

[willowvpn 0]

openvpn 2.6.14, remote random, router

I removed

push-peer-info
setenv UV_IPV6 yes

I added "4" to tcp, which log confirms

proto tcp4

airvpn keeps trying to push ipv6, but since router is strict ipv4 only

Linux can't add IPv6 to interface tun0
Exiting due to fatal error

this keeps going a few hundred times, random servers, until suddenly some server (seems variable) no longer tries to push ipv6 and connection gets established.

I tried also, to no avail

pull-filter ignore "ifconfig-ipv6"
pull-filter ignore "route-ipv6"

setenv UV_IPV6=no

setenv UV_IPV6 no

Which ovpn file or other setting would get rid of airvpn pushing ipv6?

[Tech Jedi Alex 1514]

Please add or change the directive verb 4, then post the complete log of such a failed connection attempt.