second signal was also fired right at right point of convergence points on macd

no doubt it was in sync with H4 second dot , H1 second dot and then appeared M15 second dot of lower top sequence,

this time market was fast for the text to react , but that is always is the case, Mr Market is always fast.

your settings of semafore are perfect, i think

previous days close is where support lies as always, especially when market has opened away by gap and traded away whole day from previous days close like today, especially when market is non trending, only in trending market it runs away from previous days close(it needs very strong momentum tailwind of already established trend) after market open and that is very low probability.

from previous days close again real price discovery begins as index components starts trading and cash buying and selling begins.

thanks