Question Tilemap from game view different from scene view

I just started with unity very recently so sorry if this is a dumb question, but in my scene view, my tiles are clean and attached/cropped properly, but when I play, the game scene shows some imperfections. Any way I could fix this? Many thanks if there are any possible solution to this
This is scene view

Here is my game view, with problems marked with arrows


Thanks again if any suggestions could be made!

 

create sprite atlas, padding setting = 2