USA NLCD Impervious Surface Time Series ImageServer missing Northwestern US!

[PatSmyth]

A huge swath of Northern/Central California, western Oregon and western Washington are missing from the "Authoritative" USA NLCD Impervious Surface Time Series Image Server. It is clearly visible in this map with all time series dates included. We use this layer for a ton of daily/dynamic processing in our org and lots of things are broken as of late as a result of this layers issues. Please advise. 

[BernSzukalski]

Summarizing... The team has been able to identify what is believed to be the root cause of this intermittent issue. This particular service is supported by approximately 70 mosaic datasets which are published across multiple servers. The service would not fail completely (we would detect that) but intermittently there would be issues with drawing and accessing the mosaics as you have noted. 

Today, after you reported this, an issue was uncovered with the mosaic footprint geometry which intermittently impacted access to the mosaics. The issue has been corrected and is currently deployed on our development servers. These changes will be pushed publicly, replacing the current service, on November 16. In the meanwhile, the team has restarted the servers to clear the issue on the production environment which seems to have resolved things for now.