Commented Unassigned: TempWorkingPath is being overwritten [1807]

I tried to change the value of the TempWorkingPath parameter, but every time I do so it gets overwritten when the application starts again.
What am I doing wrong?
Comments: ** Comment from web user: Plantje **

My apologies! I've been searching high and low, but wasn't able to find it! But, today I did find it. Is this something new in the 2.3.15 version? I really thought I saw every bit and piece of the configuration in the GUI.
The tool is running fine again.

Thanks! (This is why I donated instead of just using the free version!)