fetch not working with ipv6 name resolution

RouterOS Scripting
1

This code

/tool fetch mode=http address="ip1.dynupdate6.no-ip.com"

results for me in

invalid value for argument address:
    invalid or unexpected argument base
    failure: dns name exists, but no appropriate record

while

:put [:resolve type=ipv6 "ip1.dynupdate6.no-ip.com"]  
2a07:dc00:1330:2::204

and

/tool fetch mode=http user=$NOIPUser password=$NOIPPass address="2a07:dc00:1330:2::204" src-path="/nic/update?hostname=$NOIPDomainName&myip=$ipv6" keep-result=no

work perfectly.

Am I doing something wrong?

2 
/tool fetch url="http://ip1.dynupdate6.no-ip.com"

should work. And:


/tool fetch user=$NOIPUser password=$NOIPPass url="http://ip1.dynupdate6.no-ip.com/nic/update?hostname=$NOIPDomainName&myip=$ipv6" keep-result=no
3

It works, thank you.