Error on loading data to storage from job

13:07 UTC: We're investigating an issue where import to Storage shows "Storage API: The new primary key cannot be created; duplicate values in primary key columns exist" error. 
Next update in 15 minutes. 

13:24 UTC: We've rolled back the last release. We're investigating impact of the issue. 

13:54 UTC: We're still investigating the impact. 

14:34 UTC: We're still investigating the impact. So far it seems to have only impacted a very limited number of customer jobs. We will reach out to the affected customers separately as soon as we finish the impact investigation.  

15:09 UTC: We've finished investigating the impact and we're reaching out to the affected customers.