I think this is still not right in 6.44.1 the date is 2019:04:03 feels like a really bad April fools joke?!
Maybe this problem I am having is unrelated but similar.
http://forum.mikrotik.com/t/ipv6-passthrough-rules/129116/1
I think this thread is ten years old!? this can’t still be waiting for version 7 can it?