When using the USGS National Map from the living atlas, at medium scale ranges the map does not load and displays a blank white screen. However, at large and small scales the service loads just fine.
This issue occurs in Map Viewer, and in ArcGIS Pro. However, in ArcGIS Pro the behavior is slightly different. Instead of displaying white space, it displays the small scale zoomed in so its all blurry.
https://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer