Recently im trying the new Synapse version but i have notice a few bugs on it.
Gear: Razer Huntsman Mini 
          Razer Viper Ultimate 
The automatic profile switch doesn't work, it doesn't detect the game you set
The Chroma Doesn't work properly on the mouse, if you create a new profile on chroma the mouse will set the default light but if you add any effect later the mouse doesn't show any profile, light or color.
if your mouse, or keyboard gets unplugged or idle battery mode the chroma profile switch auto to chroma presets, so you need to go chroma and switch the whole light profile to get back to your profile.

hope it get fixed soon :D