I am new user trying to access the Sentinel datasets in ArcGIS Online. I created an account and am using the Simple WMS template, followed the instructions to create the WMS URL link with my ID that was shown in the Simple WMS template (https://services.sentinel-hub.com/ogc/wms/id where I replaced id with my unique code that was provided), added that URL to ArcGIS Online using the WMS OGC web service, and added all the layers and turned them on, but nothing is showing up regardless of the scale I zoom to.
So I can get the layers to show up in ArcGIS Online classic map viewer and in ArcGIS Pro if you only turn on one of the layers at a time. If you turn on more than one layer at a time nothing shows up. This will work fine for how I am looking to use this. Thanks for getting back to me and for your help.