My home country, Netherlands, claims I am a dual national of Netherlands and Belgium. This information could be found in the GBA (residents archive) before they removed other nationalities of Dutch dual nationals. It also showed up during my university application and request for student financial aid.
Belgium on the other hand claims I am only a Dutch citizen. My grandmother is born in Belgium and my father definitely has dual nationality. He claims I have it too. I emailed the Belgian embassy in the Netherlands about this. They say my birth hasn't been reported to them before I was 5 years old, so I am not a Belgian citizen.
Can this create any problems during travel? For example during visa applications?
I suppose this would automatically resolve itself in 5 years, when I turn 28, and I would automatically lose any presumed Belgian citizenship, but I would rather not run into any trouble before that time.