Solution
This is due to the presence of two or more applications which override certain workflows (such as Copy, Fax, FTP, Email, USB). Easy Copy, Easy Scan, and Easy Fax are examples of such applications. The presence of other applications that override the workflows that the Easy apps override causes this issue. To resolve this, refer to this article: Certain apps’ user interface override other apps’ or native apps’ user interface.
If the issue persists, search for more information related to this issue or contact support for further assistance.