Qt Creator opens wrong project

Ubuntu 16.04, GitHub release branch, Qt Creator 4.5.1 based on Qt5.10.1
I followed the quick start guide to open UE Editor in Qt Creator. I followed the set up Qt Creator guide and opened a new C++ project in the Editor using Qt Creator. It’s called MyProject2. Now I’m starting a new project, MyProject3. I set the Debug build settings, the release build settings, and the run settings. When I run, it launches the editor and opens MyProject2. Then I go to profile build settings and turn off shadow build and clear qmake and now when I run it causes an error. What should I set the profile build settings to? Is that causing it to open the wrong project? And if not, what is?