Laravel 5.2 not reading env file

Question

After upgrading to Laravel 5.2, none of my .env file values are being read. I followed the upgrade instructions; none of my config files were changed except aut

Answer 1

Tried almost all of the above. Ended up doing

chmod 666 .env

which worked. This problem seems to keep cropping up on the app I inherited however, this most recent time was after adding a .env.testing. Running Laravel 5.8