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STM32 - GPIO Manually Enabling pin problem.. HELP?

I am attempting to enable a specific pin in the GIPOA. When I enter debug mode and execute the command that should enable the pin: ODR8, it does not enable. So, I tried to enable it manually using the check box in the System Viewer Window -> GPIO -> GPIOA + ODR. The check shows up for a split second then goes away. It will not allow me to change any of the check boxes.

Is there a simple solution to this?

Thank you.

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