Are you prepare to look for a new job? If so, yes. I would frame it slightly differently. I would set up coffee with the investor you know. Ask them what they

Are you prepare to look for a new job? If so, yes. I would frame it slightly differently. I would set up coffee with the investor you know. Ask them what they thought of the demo. Ask them if the demo was the reason they invested. Ask them how large a role it played in their decision to invest. Ask them if they believe the code in the demo is proprietary or open-source. If the answers are different than the truth, re-do the demo in front of them, including going to Github and cloning the repo.