Thank you all! CleanMyMac didn't fix the problem, so I went ahead and did a fresh wipe and install of my MacOS (High Sierra)... and when I downloaded my Chief Architect, I didn't realize that I was entitled to an upgrade, so I went from X7 to X8.
Totally worked, thank you!
FYI -- I never listened to advice about "cleaning house" on my Mac, but from now on, I will do a fresh install every so often. :)