Up until about last week, it was possible to identify the correct URL for all ArcGIS-Hub-hosted files from the /data.json file. This week, I'm finding that at least some of the links in those data.json files are giving 404 errors.
For instance, if you look at https://hudgis-hud.opendata.arcgis.com/data.json and search for Public Housing Developments, the accessURL for the CSV-formatted version of the data is listed as
https://hudgis-hud.opendata.arcgis.com/maps/HUD::public-housing-developments.csv?outSR={"latestWkid":3857,"wkid":102100}Following this link gives a 404 error. This seems to be a template error because if the "/maps/" part of the URL is changed to "/datasets/", the URL works.