When looking at Santa Monica KSMO tracking page, there are no vicinity aircraft showing, except for a very few aircraft. I made sure the Vicinity check box was selected. SMO is near LAX, so there should be a large number of Arr/Dep at LAX. I viewed the LAX tracking page, and sure enough there were a large number of aircraft in/out of LAX. These same aircraft are not showing in the SMO page, when typically they would in the past.
I have zoomed in to 5 Mile range, and still not showing vicinity aircraft on the SMO page. This has also been the case at KSBP (showing only aircraft in/out, no vicinity) so I think is is more widespread than just specific airports.
Secondly, I have noticed that I can now pan across the entire US when viewing the Flight Tracker page of a west coast airport. Example, SMO, zoomed to 10 miles, I can pas across to view the Miami area. Again, very few aircraft showing around miami or between, which seems odd (see above). Typically there was a ‘bounding box’ that limited the distance away from the specific airport you could ‘stray’. Is this a feature or a bug now?
The above was not the case a week ago. I only noticed this the last few days.
The above was experienced on my home computer. I can view the vicinity aircraft (ksbp, ksmo) when accessing the tracking page via my iPhone using the mobile version of the site accessed through the browser, not the app. I much prefer the mobile site vs the application because maps with vicinity aircraft, arr/dep/enroute/schec. dep all show in one page. Hope this helps.
Thanks for your time and FA,