A mosaic of 3DEP rasters appears properly when zoomed in close, but becomes checkered when zooming out. Visibility range is set to <None> for both min and max scales. All source rasters are saved in the same workspace. ArcGIS Pro version 2.1.2
Did you build overviews for the mosaic dataset:
Build Overviews—Data Management toolbox | ArcGIS Desktop
Try executing this tool with the default settings and see if you can view the mosaic dataset at smaller scales (zoomed out).
Retrieving data ...