From time to time, I see this error in Application Insights in Failures => failed dependencies :

Been searching through the documentation, but cannot see this mentioned anywhere. Does this status mean that the operation was cancelled through the token, or is it similar to the cross-partition response that used to be an 400 error? (https://github.com/Azure/azure-cosmos-dotnet-v2/issues/606#issuecomment-427909582)
Also, will this action be retried or is there loss of data for this?