From what you describe it sounds more likely that your visible cube is set in a persistent level.
However. The old system (and i presume the new one too) always needs an initial tile to load, so it could be that as well.
Make sure you have an extra tile and that the player position is on that tile initially.
The old system supports distance settings in the levels tab. Assuming you set layers to a 0 distance, then you should get something very similar to what you are asking.
Can’t say i have ever used anything less than 250m as a distance value for tile loading though, so not sure you’ll get what you expect.
Not familiar enough with the “new” system to guess, but i can only tell you that here in the forums people constantly complain about it being worthless…