I updated to the newest release of StudioOne 3 Now there is a ? on the Studioone icon? I am on a Mac book Pro OS 10.10.5

It sounds like the link between the alias in the dock and the program in the applications folder has been broken. If I remember rightly, you can click on it and relink it. Otherwise you can drag the StudioOne 3 icon from the applications folder to the dock and get rid of the ?.