Nextgentel use 2a04:980::/29 that go from 2a04:980::/29 to 2a04:987:…/29 so is coherent.
If you log the array, winbox or webfig can’t show correct hex values.
Try to use this for log:
:log info "na-prefix $[:convert $"na-prefix" from=raw to=hex]"
WARNING: Do not publish result of anything o forum, if you do not know what is it.
This can expose your public IPv6, so is better to contact directly mikrotik support if you obtain garbage (except for $option that is correct)
Jeg kan ikke gjøre noe annet, jeg ønsker deg en god dag.