Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default not populated

When running Qt Creator (based on Qt 5.7.1 and the MinGW edition), the following is not populated in the .pro.user file, and simply has nothing outside of the tags:

<value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.UserWorkingDirectory.default"></value>

This affects the programs we are running, which launch subprograms.

If I manually enter that key into the .pro.user file, everything runs fine.

I can also fix the issue by selecting Projects in the left hand window, then checking "Run in Terminal." If I run the program once in the terminal, and then de-select the "Run in Terminal Checkbox," the program will run fine from within Qt Creator (and the key is populated in the XML file).