Going to share what I found seems to work with all my samsung devices (as presence sensing in general has been an issue with ALL apps I have used with the exception of Tasker)
I will also add, before the steps below, if you are using a case with a magnetic closure, or a magnetic mount, that will ABSOLUTELY kill your compass which will in turn make your geofencing extremely unreliable. There is an app called GPS Status and Toolbox that you can use to check your compass calibration and fix it if it is off. If the calibration bar is anything other than fully lit with green, then your geofencing will have issues.
*** Edited to add, you can open the calibration page on GPS Status, and put it on top of a magnetic case to watch it go from green to yellow to red in a matter of seconds for the "mag safe" and similar cases. For the leather/nylon cases with magnet closure, it takes a few hours as the magnet isn't as strong. Once we realized the correlation, we quit using the cases and mounts, and the calibration seems to hold except for unusual situations (like everytime we fly we have to recalibrate)
I have a video showing the instant decalibration of the compass, but, I do not think we can upload videos to the forum....... End Edit ***
