App Nap needs to be disabled on both the Brief EnCounter and the Locator application.
First open Finder and go to the Applications/Brief EnCounter folder
Do a Get Info on the Brief EnCounter application
To do a Get Info, select the Brief EnCounter application and hit Command+I. Alternatively you can right+click on the Application and select Get Info
Check the Prevent App Nap checkbox and close the Window:
Now browse to the Applications/Brief EnCounter/datasync folder and repeat the process on the Locator application.