I'm trying to find some info about the attribute types for which values can be auto-generated importing product via Magento importer.
 
I've seen that Text types is one of it, and I've read that dropdown and multi-select should be "importable" too, but I always get the error "attribute contains incorrect value" Checking the import file.
 
I've seen an issue in the github repo related to this, but it looks like it's closed. 
 
Am I missing something ? 
Is anyone else facing the same issue ? 
I'm using Magento CE 2.3.1