Upgrade from versions 6.5 and earlier to 6.7 may not work for some machine learning users.

Incident Report for ESS (Public)

Resolved

With the release of 6.7.1 today, this issue is now resolved.
Posted Apr 04, 2019 - 17:33 UTC

Identified

If you are performing an upgrade to 6.7 from 6.5 or earlier versions and you have a machine learning datafeed that uses aggregations, your upgrade will fail. However, Cloud will roll back to your current version. The current workaround is to upgrade 6.5 and earlier versions to 6.6 first and then to 6.7
Posted Mar 29, 2019 - 00:45 UTC

Investigating

If you are performing an upgrade to 6.7 from 6.5 or earlier versions and you have a machine learning datafeed that uses aggregations, your upgrade will fail. The current workaround is to upgrade 6.5 and earlier versions to 6.6 first and then to 6.7.
Posted Mar 28, 2019 - 21:46 UTC