MapView is not requesting vector tiles with a level of detail higher than 9

[AlexGonzalez2]

I'm currently having issues with a basic map application and some of our vector tile layers. Our VTL has valid tiles starting at a level of detail of 10 and higher. And when I add the tile layer to the map and zoom in the application is never requesting a tile at a higher level than 9.

The code in the window looks like this:

Whenever, we zoom into a scale where the layer would be visible the application is only requesting a tile with a level of detail of 8 or 9. The layer starts at a level of detail of 10.

Here is the fiddler log:

You'll notice that there are no requests at a higher LOD than 8 in the logs.

Does anyone know why the map is not requesting tiles at a higher level of detail that would allow them to become visible?