My data log of data source not showing any rows, but showing message as "Got 12 rows in 1ms".
Are you looking at the Transaction Log? If so, the format was changed in version 1.8 and does look different.
No, i am looking at Data log of data source. Please see attached snapshot.
Can you please try pressing the green triangle Play button on the DataSource Test Step?
I tried the same, but still its not showing anything in data log although it print message as "Got 12 rows in 9ms"
In that case, I would suggest opening a ticket with our Support Team. To do so, please click this link.