If anyone is having stability or functional problems with the WiFi Hotspot sharing, I'm curious about your hotspot setup. Are you using the integrated hotspot AP in Android? If not, what 3rd party hotspot AP app are you using? Also, what device are you using for the hotspot sharing device? That information may be a good clue as to what I need to look at to stabilize the WiFi hotspot sharing. Feedback suggests the WiFi hotspot location sharing is working and stable at this time for a very large majority of devices and hotspot setups, so I'm very curious what is different about your setup that prevents it from having success and/or stability over the WiFi hotspot.
Stable delivery of the location to the receiving device (regardless of the accuracy) is really what I'm looking at here, because the accuracy is dependent on the sharing devices' GPS receiver and its ability to see open sky to obtain a satellite lock. Of all people I know how frustrating that can be, because I live in heavily wooded area, and the accuracy of my sharing location is somewhere around 3000m before it can finally obtain a GPS satellite lock.
I found a bug that makes the sharing notification disappear/reappear when restarting the app while sharing, and the fix will be in the next version. Thanks for anyone's help in testing!