We have received confirmation from our Earth Imagery partner that this issue is resolved. If you are still receiving 404s for valid tiles, please reach out to support and we'll help you.
Maps API - Europe - DC1Upstream issues
Our Earth Imagery partner's APIs are returning sporadic 404s for valid tiles. We are working with them on a fix. In the meantime, we will return over-zoomed tiles if a specific tile isn't found. We apologise for the inconvenience.