I have made packages is SSDT and when I run them in debug mode they work perfectly.
Then I deploy the packages to SSISDB for automated execution.
When I test the packages, I run them straight from the catalog.
After awhile, packages fail to :"exception has been thrown by the target of an invocation"
Any idea where to start look for the bug?
NOTE: this exception started suddenly for no apparent reason, packages could be ran earlier..
SQL Server 2012 clustered enviroment