retrieve information from before a transaction

I have a report and it retrieves information from an etl logging table which contains this info: etl_process_name, active_since_date, last_run_date.

When the packages are executing, the table cant be queried because it is in a transaction. Therefore the report keeps generating :s
The thing I want is that: If I query that table (with the report to show the logging table information) and the packages are executing, I want to see the values of the table before the transaction.

What I tried:
From sql management studio:

ALTER DATABASE MyDataBase
SET ALLOW_SNAPSHOT_ISOLATION ON
set transaction isolation level snapshot
go
SELECT etl_process, last_run, active_since FROM config.etl_settings

I did this while the packages were executing and it works but it won't work when I execute the same SELECT statement from the Dataset in the report. How is that possible? Does it have something to do with setting the database options for all users?

Additional info:
I'm database owner
The report solution has a shared datasource which refers to the same database

What is the error message are you getting?|||

Hmmm, I still don't know why it didn't work yesterday but today the report gets generated and shows the data from before a the transaction that is busy at the moment.

All I did was alter my database to edit the transaction isolation level:

ALTER DATABASE MyDataBase
SET ALLOW_SNAPSHOT_ISOLATION ON
set transaction isolation level snapshot
go