**Describe the bug** xtile = int(math.floor((x + EPSILON) * Z2)) ValueError: cannot convert float NaN to integer **To Reproduce** This is the code I am using to collect th close-to images to a specific coordinates: for index, row in enumerate(df.iterrows()): coordinates_to_image_id_dict: dict = {} latitude, longitude = dict(row[1])['LATITUDE'], dict(row[1])['LONGITUDE'] coordinates_to_image_id_dict['lat'] = latitude coordinates_to_image_id_dict['lng'] = longitude try: data= mly.get_image_close_to( latitude=latitude, longitude=longitude, radius=35, image_type="flat", min_captured_at="2016-01-01" ).to_dict() except AttributeError: print('AttributeError occurred') data = {} print(data) print('latitude and longitude:', latitude, longitude) **Expected behavior** if math.isnan(x): # handle NaN case here else: xtile = int(math.floor((x + EPSILON) * Z2)) **Screenshots** latitude and longitude: 51.9326934493218 -8.05201349824569 Requesting GET to https://tiles.mapillary.com/maps/vtp/mly1_public/2/14/7892/5318/?access_token=MLY%??? Response 200 OK received in 78ms {'type': 'FeatureCollection', 'features': []} latitude and longitude: 53.2429118794892 -6.58873419758931 Traceback (most recent call last): File "Data_collection_json_metadata.py", line 39, in <module> min_captured_at="2016-01-01" File "/home/peoplexxx/.local/lib/python3.7/site-packages/mapillary/utils/auth.py", line 59, in wrapper return f(*args, **kwargs) File "/home/people/xx/.local/lib/python3.7/site-packages/mapillary/interface.py", line 116, in get_image_close_to kwargs=kwargs, File "/home/people/xx/.local/lib/python3.7/site-packages/mapillary/controller/image.py", line 110, in get_image_close_to_controller latitude=latitude, File "/home/people/xxx/.local/lib/python3.7/site-packages/mapillary/models/api/vector_tiles.py", line 123, in fetch_layer tile=mercantile.tile(lng=longitude, lat=latitude, zoom=zoom), File "/home/people/xxxx/.local/lib/python3.7/site-packages/mercantile/__init__.py", line 426, in tile xtile = int(math.floor((x + EPSILON) * Z2)) ValueError: cannot convert float NaN to integer