Map Viewer Classic missing layers from Content
I'm noticing some odd behavior when using map viewer classic- it appears some of my layers are missing from the left panel Content pane. However, they layers appear on the map, as well as in the Legend in the left panel and they show up just fine when I just the new map viewer. Here's an overview of what I noticed.
We are using Web App Builder Developer Edition and therefore my map is being built and saved in the map viewer classic format. I was looking at some data on a web app of ours and everything looked normal in the Layers widget as you can see here:
But when I went into the Web Map for this to make adjustments, I did not see the layers in the Content:
Everything after 'Vac Traks Notifications' was missing. I verified that I was looking at the correct web map by navigating to the web map used by the app by clicking more details and checking that the map item ids matched, and even that the overview page listed the layers I was expecting to see.
As I mentioned I can also see this data in the map as well as in the legend, but it is not available in the Contents. For context, I am the owner of this map and all of the items are shared with me, and therefore should not be hidden for that reason.
Is this a known issue or bug? Or is there something I should be doing differently in order to see this data?
