Hello!
I own a Pineapple Nano, and have it setup. Let me run down the list. I am using an Alfa USB to connect to a WiFi connection to forward all traffic to the internet. I have my Management AP, and Public AP (Rogue AP) setup. I am able to connect with a device and my traffic is forwarded. I have the microSD card plugged into the NANO. It has been formatted to EXT4. I rebooted the device, and according to the GUI it is mounted and ready.
I load the modules page. Then I click "Get Modules" and the list populates. I then proceed to "Install" any of the modules, let's go with "nma