Can't record software simulation on a secondary/extended screen display

I'm trying to use an HD monitor that is a secondary screen to my laptop to record a software simulation. I've sized the record window to fit the software window in a reduced size on my large monitor; however, when I record the simulation, Storyline only records a corner of what's in the actual record window. The rest of what is captured is outside this window. Mainly my desktop background and part of my taskbar. Shouldn't I be able to record a simulation on an extended screen display?

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