The new OS Sierra 10.12 was released on the 20th September.
When you install Read&Write for Mac on startup the screen below on the left will now be displayed. You will need to manually follow the steps on the dialog to allow Read&Write for Mac access to the accessibility pane on the Security & Preferences panel.
(Please note Admin permissions are needed to do this.)
When the above screen appears please complete the following instructions:
1. Click the Security & Privacy button.
2. On the Security & Privacy preference screen that just opened, click the lock icon at the bottom of the screen and enter your password when prompted.
3. Tick the box beside the Read&Write Gold icon as shown below, then click continue to open Read&Write. (You can now close the Security & Privacy Window)
If you want to see an animation of the following instructions