Emoticons not animated

[Deleted]

Hello,

we are using a Lync 2013 Infrastructure and i just got the new release Skype for Busines Version on my Mac (Sierra 10.12.1, Outlook 15.21.1, S4B 16.0.3683)

Unfortunatly Emoticons are not animated.

Any Idee what can cause this? 

Thanks for a help