Yes it's a known issue. I was just talking about this with other members on the forum.
Nismo wing or spoiler!? help!
Link below is helpful too but you got to have time read through everything.
!!For 370Z Owners with the Stuck Hatch Release Issue!!
I just fixed this problem a month ago. Nissan dealership should replace the spring for you for free. Or you can do the 2 penny trick which is easy enough too.