I've noticed weird behavior from the grid iron related to the sizzling effect.
When you add more meat after some has already cooked, it seems to break the sizzling effect for ALL the food - stuff on there already, and stuff added.
Could be my weird mixture of food I guess, was 4 deer pieces, then after a minute I added 4 cave angler, 2 moose, and 2 fox to it.
When the deer finished no sizzle. When the rest finished, no sizzle.
I see in 2018 not-a-cat mentioned some weird behavior too: viewtopic.php?f=39&t=62541&p=793701&hilit=gridiron+sizzling#p793701
Can you look into why it's so inconsistent?