End users using our mobile application may experience problems uploading files.
Mobile app version 10.7 or higher
mobile devices with operating systems like iOS or Android, the upload
option is not displayed in field configured for this purpose. In
Tablets, the option is displayed but it opens a blank
screen and the file does not complete its upload.
problem is presented when configuring SSL in the Web server, and using an auto-generated certificate, instead of using one emitted by a
you configure SSL, use a certificate emitted by a Certified Entity.
following article explains how to configure SSL in IIS: https://support.microsoft.com/en-us/kb/299875