In CDC DataFlow why is the DF failing after successfully running 10 records?

When running a DataFlow in CDC, I get the following error in the logs from a "record.evaluate" component that has a script: Script trace reach its max capacity, messages from script 'check SMC' will be ignored. trace capacity: 10"

I know that if I run the DataFlow from "Run Test" button, it is limited to 10 records, therefore I used "Scheduler" where there is no limitation according to the docu. but I still get this error.

Thank for suggestions!