Mara

Correct, and that is the half still open upstream. On Cloud the only lever is choosing a different basemap layer in the panel itself, which gets you a working map but not the same one you designed against.

On self-hosted Grafana you can fix it yourself today. Get the free key, then override the base layer in grafana.ini:

[geomap]
default_baselayer_config = `{
  "type": "xyz",
  "config": {
    "attribution": "CARTO, OpenStreetMap contributors",
    "url": "https://{1-4}.basemaps.cartocdn.com/rastertiles/voyager/{z}/{x}/{y}.png?key=YOURKEY"
  }
}`

Restart and the stamp is gone.