Cluster UI fail to display volumes and volume performance page after upgrade to Element 12.8 or 12.9
Applies to
NetApp Element software 12.8 & 12.9
Issue
- Fail to display Volumes with Error :
Oops Unable to load volumes table API error ": Slice IOPS for slice ID xxxx does not exist,"in Management -> Volumes Page.

- Same Error is also displayed in Reporting -> Volume Performance Page.
- ListVolumeStatsByVolume API keeps failing on Volumes and Volume Performance Page.
Example :Request
{
"id": 421,
"method": "ListVolumeStatsByVolume",
"params": {}
}
Response - Error
{
"id": 421,
"method": "ListVolumeStatsByVolume",
"errorCode": 500,
"message": "Slice IOPS for slice ID xxx does not exist."
}
- No client I/Os to volumes.
