Problems with Android 5.1.1

I have noticed several problems since updating to the new 5.1.1 software. Firstly, has anybody noticed the different icons? All the stock apps are now using the Note 5 icons, but from researching this problem, other people don't seem to have this issue? Another problem is a lot of my messages aren't sending, I keep needing to restart my phone and try again, then they send.

Anybody else experiencing any of these?

Galaxy S6 - Three - 32GB