KNIME won't recognise JSON column after a certain amount of records.

I have a workflow that makes a request to an API. It returns a JSON body. If I make 500 requests it works just fine, however when I make the amount I need, 1500, it stops recognizing the column as a JSON data type and changes to Non-Native.

Does anyone know how to fix this?

Are your sure that the service you are calling continues to deliver JSON documents when you go above 500 requests? It sounds like it returns sth. different for at least one call and therefore the column type changes to non-native.