Tracker Data not showing up in "New" Map Viewer?

Question

When I open up the "New" Map Viewer to build a map and try to add data created by Tracker it does not show up and I do not get an error?

If I open up a map in the New Viewer that was created in Classic the layers are there but no data on the map?

Anonymous User · Answer

How many people are being tracked?

Did the track lines layer work?

When you add the tracking layers, it's supposed to create a group layer with all 3 layers in it and apply scale symbology to prevent a lot of points from being drawn when zoomed out. When zoomed out it should default to showing lines and the current location.

PaulVepraskas · Answer

Appears the New Viewer Cannot handle the amount of data in the Tracks.  I added the Layers one by one with their URL's.  The Current Location came in, but the Tracks were added to the Layer list but did not appear.  I was able to set the filter to just the last five days and then the tracks appeared

Anonymous User · Answer

My guess is the requests to fetch the feature service definition are failing or timing out due to a backend issue. You could try opening developer tools in your browser, opening the network tab, and then clicking to add the item to the map. If everything works correctly, you should see successful requests. If it's not working these will return no data and not have a 200 response.

This is what it should look like:

If you consistently see this issue, I'd recommend opening a support ticket.