Hi Michael,
I'm not sure what app you're using, but the motor control in that Blockly app is not anything we've written. We are the developers of the Blockly library and code editor, the snap-together puzzle pieces on screen you're using to define your program. The editor is used in many apps, some robotics related, many not. We don't write any of those apps.
It seems like you are using one of the many apps written with blockly embedded, but your issue sounds like it has more to do with how the code is run after it is output from the Blockly editor. You should seek out the developers or a support forum specific to that app.
Best of luck with your team!