OMG!!!! I got it to work! 
the problems was with the gold connectors of the shitty chinese m.2 adapter
wiggling it around and pushing it in didn't help at all!!!
what did help was following Asus recommendations on installation of m.2 cards but not from the Z270-p manual, those are not there! I looked by chance at the Z170 manual.
I followed the instructions carefully, FIRST screwing in the m.2 card and THEN bending it into place. VERY SCARY!! I felt like I was going to snap the card in 2 or snap the motherboard or snap my fingers, bending those shits is hard!!!
finally it's done!
both cards recognised
here is where to download the manual https://www.gigabyte.com/Motherboard/GA-Z170-Gaming-K3-rev-10#support-manual it's page 15, (I couldn't find how to attach photo here)
ENJOY!!!
the problems was with the gold connectors of the shitty chinese m.2 adapter
wiggling it around and pushing it in didn't help at all!!!
what did help was following Asus recommendations on installation of m.2 cards but not from the Z270-p manual, those are not there! I looked by chance at the Z170 manual.
I followed the instructions carefully, FIRST screwing in the m.2 card and THEN bending it into place. VERY SCARY!! I felt like I was going to snap the card in 2 or snap the motherboard or snap my fingers, bending those shits is hard!!!
finally it's done!
both cards recognised
here is where to download the manual https://www.gigabyte.com/Motherboard/GA-Z170-Gaming-K3-rev-10#support-manual it's page 15, (I couldn't find how to attach photo here)
ENJOY!!!