Since last update

I currently use the device tracker with my Ubiquiti network. Since the last update the mobile phones I am tracking seem to disappear and therefore the “people” I am trying to track as being in the home are showing as away even though they are home and using the network, what has changed and how can this be rectified? One of the users (Me!) is using the mobile phone app for HA and if that is used then I show as being home but the others do not!

Please help - and let me know if there is any other information I need to add to this to gain assistance without loosing security.

Dave