I would be very pressed having to think up a situation where this could cause problems. Belgium and the Netherlands are both members of the EU and the Schengen area so the assumption seems valid that for most countries out there visa requirements would be very similar to identical.
A significant number of countries do not recognise dual citizenship at all. If they do not recognise it, they will not assume it and have no reason to doubt your statement (‘I am a Dutch citizen’) on their visa application to be incorrect or anything.
Those that do recognise it probably also know that the number of non-dual citizens greatly exceeds that of dual citizens, so they also have no reason to assume you hid a second citizenship from them.
Another relevant point is that most countries have a neutral or friendly view of Belgium and the Netherlands. While you could run into problems in some parts of the world if the country you’re applying at assumes you to be a dual citizen of Israel or Syria I don’t really see that happening for Belgium and the Netherlands. (Maybe in the Democratic Republic of Kongo due to its Belgian history, though.) As such, most countries wouldn’t even bother to ask if anybody considers you their citizen.
Finally, I think it is more the exception than the rule for a country to cross-check with the passport-issuing country whether the visa applicant has a dual nationality or not — most notably because most countries that do allow their citizens to be dual citizens of another country don’t even care whether that citizen has a second nationality and don’t keep such records. The case in point being the entry removed in Dutch registry archives as you mentioned.
The Dutch government does not have any special authority to declare you to be (or not to be) a citizen of Belgium.
Based on what you tell, it seems likely that the Dutch authorities had you registered as a dual Dutch-Belgian national based on your parents saying so when you were born — apparently your father was unaware that Belgian nationality law had changed in 1985 so that you would only inherit his Belgian citizenship if your birth was reported to Belgium within 5 years. (At the time your father inherited his Belgian citizenship, simply being born to a Belgian father was enough).
Ordinarily there would be no reason for the Dutch authorities to attempt any independent verification of this information. In other words, the do not make any unilateral “claim” about your nationalities, but just kept a record of what they were told by someone who presumably knew.
Since, since 2014, the Dutch civil registry does not store information about additional citizenships of Dutch nationals anymore, there is probably nothing you need to do to correct this mistake — except that if the information surfaces in a different context you’d want to set it right with the organization it surfaces with.
In any case, it is hard to imagine that this administrative mistake could cause you any travel problems in particular. When you need to fill out forms that ask for your nationality, simply state the truth — that is, Dutch not Belgian — and there’d be no reason for a third country’s government to care about the fact that some administration somewhere that is neither them nor Belgium once had the mistaken impression that you had Belgian citizenship.
Credit:stackoverflow.com‘