Hi. I noticed when I tried to play Connect 4 and put a chip in a certain location, it doesn't do anything. Does anyone know why?

Hello. I think some more precision is needed. Maybe it wasn't your turn? However, if you mean that the chip did not go in the location you wanted, this is normal. If you try to put one for example on A5, but previous spaces below A5 are not occupied, your chip will automatically go to the first available free space in A. This is due to how the game works in real A token automatically falls in the next available colum of the chosen row. I have played connect four recently and it didn't seem to have any error.

So as nikola said, it goes to whatever lowest square is free in A if you hit enter in any square of A. Consequently, if you lets say hit enter on A when all squares of A have been occupied, nothing will happen because there is no square available in A. Sorry for using the word A so many times.