I have a razer viper and using with synapse 3. Recently app stopped working properly and deleted/downloaded again. After that in connect->apps section there is 2 wallpaper engine logo appeared (not 1 and it didnt happen to apex and overwatch) . As you can see on my screenshot. (i own wallpaper engine, apex and overwatch)

I hope you can understand -my english is not good- , if you need further detail i will try to provide it.