When I am playing with increments, I am not getting the time added when I instant move. I haven't tested in live but it happens with the computer. If I play 15/10, I can queue up 4 moves in a row, they all happen and I don't get 40 seconds added. Same for 1/1 and 3/2... you just don't get the time added. if I wait at least a split second before I move, I get the time added in my game.
I tried it. Like you said, you found the problem playing against bots. As you found, if you just move normally, increment works.
However, premoves may not be working properly against the bots. Multiple premoves should add to total remaining time.
/ There is probably an entirely separate system running the bots- allowing hints, takebacks, etc.
When I am playing with increments, I am not getting the time added when I instant move. I haven't tested in live but it happens with the computer. If I play 15/10, I can queue up 4 moves in a row, they all happen and I don't get 40 seconds added. Same for 1/1 and 3/2... you just don't get the time added. if I wait at least a split second before I move, I get the time added in my game.