I've been using Odoo's Android app for quite a while. I can access the different modules, make various actions like validation of stock pickings, create sale/purchase orders, use barcode scanner, etc. However, when I try to upload a file (like an attachment or a product image), nothing happens, it doesn't open my phone's file manager app or even the camera to upload an image. Access rights had been set correctly.

On the other hand, if I open Odoo through a web browser (say, Chrome), it allows me to upload files/images to the system. I even tried in other phones with diferent android versions (4.4 to 6.0)...same behavior.

Has anyone had the same issues with the phone app? Why is this happening? How can we solve this?

I'm using Odoo 11 Enterprise, installed in a server with Ubuntu 16.04.