When I manually turn swapon on the specific partition it works, but when it boots it has no swap again.
The format of the command has been used in many different linux installations without a problem and still is being used/shared.
UUID=123456 swap swap defaults,noatime 0 0
Solution:
I was 99% sure that when I went through this file I turned this ON, one of the very few things I changed.
https://wiki.obarun.org/doku.php?id=s6-boot&s[]=fstab# configuration_s6conf
/etc/s6/s6.conf
# swap support [yes|no]
USESWAP=yes