I am playing level 1402 and am on the last move and as you can see in the picture there is 1 gel left and there are 3 purple in a row with said gel, however they didnt resolve and the it says game over.
So I am not sure if I am getting this wrong, but usually even after a move if there are three in a row of the same color the resolve. At least that's what I experienced until now, does that just happen when there are still moves left?