Stock Kit Kat 4.4.2 Issues on Sprint S4 topic

I'm on stock Kit Kat for my sprint S4. I noticed that now when I wirelessly charge my phone it gets extremely hot. Also one it gets to 94% it stops charging. Not sure of it stops due to heat or the new software doesn't like to do wireless charging. I have an aftermarket qi charger and peice for my phone. They worked perfect until I updated last week . Is anyone else having this problem. The other thing I noticed is Google hangouts emoticons when entered in a chat come out looking diffrent. Looks like Samsung emoticons. I checked this on my wife's note 3 after updating to stock kit Kat and the emoticon icon disappeared. So not sure if this is another issue with it may and Samsung phones.

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