Sure, I did.  Where can I get the ODBC log file? Thank you.

Connections are OK:

I can perform queries successfully for new Data Sources (created after installed HS2015.2) AND for the previously created Data Source ones (created before installed HS2015.2).

Now, as a side effect, I'm not able to view any table or fields  for  all Data Sources configured.

Did it. File has been uploaded. See on your right 

No, Username and Password are correctly specified, in the Data Source details.

Don't know why 'USERNAME:'  is not correctly logged into file.