hey! what game are you trying to use the cheat engine with? not sure if i'm right about that, but it seems that some games don't really work well and some others do.
i just keep the least tabs open and try every process until i find the correct one. idk if there is an easier method, hahha
edit: for example, it works fine for me with faerie bubbles that ruffle runs well, but if the game is somewhat broken with ruffle like advert attack, i can't really use it