After all my time researching how security clearances work, I have always heard that if you sign a SF-312 then that means you’re good to go. A lot of times, people are granted eligibility for a clearance and sign the non-disclosure only when that person has a need to handle classified material.
You say you’re deploying… well I would call that a need, hence why you signed. If you have any more questions I would continue to try and reach out to your FSO as they would be more of a help than us.
Good luck.