The Dock was moved to the right side of the screen but still auto displays when cursor on bottom?
If you get unexpected behaviour after manually moving or adjusting the Dock, you can try restarting the Dock.

Open your Terminal (Applications > Other > Terminal or search for Terminal in Spotlight)

Type killall Dock after the prompt and enter.

Your Dock should restart with the expected behaviour.  You can verify your settings in the System Preferences > Dock

Edit: It May be necessary to reset the Dock to factory settings then customize as needed. Some have experienced various dock bugs in Sierra. 


Open the Terminal
Type (or copy and paste) defaults delete com.apple.dock; killall Dock
Hit return