The status of the last device tracker that reported a location will allways overwrite the previous state. So if nmap is reporting the location every 10 seconds than the report from Tasker will only last for a maximum of 9 seconds. Try disabling nmap and see what happens.
P.s. and only now I see that this post is from 2016 lol (I just woke up, still a bit sleepy ;))
For those that use tasker to update your location, what type of profiles do you guys have? Trying to get an idea of how to make it work in a battery friendly way lol. How frequently do you send GPS updates?
Sorry for the might be noob question, but what is the platform needed for this one? I mean with ping platform, the hosts are the entries on ‘known devices’…