Not as great as it used to be

Lately Ive noticed that even though all of my birds are leveled up, they dont do any better damage than when they had no upgrades. How does a big red, only go through one or two ice blocks on occasion, when sometimes before it went through like a hot knife in butter? And the slingshot upgrade, total joke, does nothing. I used to love this game, could play for hours. With bugs, or issues, or all around crappy updates, and you are only concerned with the appearance of the app? Thats just horrible. Fix it!

SJP4G about Angry Birds 2, v2.12.2