Does Search API index custom fields? I am using search API on my website (Version 1.8), I have a problem with indexing custom fields. In the Configuration -> Search and metadata -> Search API I have added the custom fields to be indexed, in the view in the "Fulltext search" the custom fields appeared. In the database I can see that the fields got indexed. But when I test, there is no result. Has anyone had similar troubles with Search API? 

Edited: The problem occurs only with the fields of "Entity reference" type
You probably need to index the referenced entity Name* (assuming you want to search on name) as a field instead of just simply the entity ID (which is what entity reference fields actually store). The pattern should look something like the following on the 'fields' page:

field_yourfield:entity:name