There is definitely something strange with the Hex grid. I set the grid to Hex (H) and put a Hex token I had created on the map. Then changed it to "Is Drawing" so it wouldn't try to snap anywhere. Then resized it to fit just about perfectly in one hex on the grid. I then changed the grid to Hex (V). I rotated the token to orient with the grid and it was a different size. One way an individual Hex is about 75 pixels and with the other orientation of the grid a hex is about 80 pixels. I would have thought both should be exactly the same. Even the squares should be the same number of pixels as the Hexes. So when you design a map and you make it 70pixels per inch then it will align perfectly if you are using 1 inch squares or 1 inch hexes. Even a map with hexes printed on it should align on a square Roll20 grid in one direction. And the opposite should be true as well. Also when using a hex grid and you size a token by units (1 unit x 1 unit) it is using the 70 pixels x 70 pixels definition from the square grid. So of course none of your tokens will line up in the hex grid properly, they all get sized a little smaller. Or maybe I'm just missing something?