I need help with custom entity extraction setting. I created an UTF-8, comma separated .csv file, script with the right dictionary (`Microsoft.UserDictionaries.EntityExtraction.Custom.Word.N`) and UNC path. 

I'm trying to create it from the right server with the proper rights, search service working properly and still with any luck. The only interesting line in log is:

> 
> Error Category: ResourceUnavailable Target Object Microsoft.Office.Server.Search.Cmdlet.ImportCustomExtractionDictionary Details NULL RecommendedAction NULL
> 
> 
> 

Environments:

1. SP2013E 15.0.4420.1017, single server inst., SQLS 11.0.5058, AD, Internet, domain
2. SP2013E 15.0.4571.1502, single server inst., SQLS 11.0.5058, AD, Internet, domain

The same file and the same script works on third environment

3. SP2013E 15.0.4569.1506, single server inst., SQLS 12.0.2000, AD, Internet, domain

![enter image description here](https://i.stack.imgur.com/4hE4B.png)

I must overlook something pretty obvious I think.

[Csv screenshot]

![enter image description here](https://i.stack.imgur.com/7OUwD.png)