Test A is bound to a single row and Test B is bound to multiple rows. Test B is set NOT to inherit parent data source. Test A calls Test B. Test B executes only for 1 iteration if run with any of the 'Run From Here' and 'Run Selected Step' options available in the test explorer context menu. Please find attached sample tests that reproduces that behavior. Expected behavior: To perform all iterations as if the whole test was executed. Actual behavior: Only one iteration is performed.