I have a student that keeps getting a remix warning when I knew they are not remixing. The program is not public.
I have had them recreate it and name it something else, but it keeps getting a remix warning.
Looks like an interesting project.
Are you talking about "Mark as a remix of another project"? That's not a warning; it's a button. I guess that could be clearer. You click it to report someone else's project as a remix.