Object Selection Tool Causes Layer to Turn Blue

Before you turn it off, study how the new Object Finder option works. When an area of a layer turns blue, that means the new Object Finder feature has identified an object, so all you have to do is click the blue silhouette and it turns into a selection. Just clicking to select is faster and less effort than having to drag that tool around the object.

It can identify multiple subjects on a layer. There is an option to Mask All Objects, which in one step creates a separate mask for each identified object on a layer. Overall, Object Finder has the potential to save large amounts of time.

If you must use it the older, slower way, turn off Object Finder.