Need help with Eversolo A8

Have you tried asking on Zidoo Eversolo forums ? There is a lot of information about all Eversolo models and Zidoo support people read them frequently.

I can't remember but there might be a setting either in the Eversolo and/or on the streaming site you are using about transitions between songs which you set a second or two between or have one fade into the other. 

What streaming service are you using?  If more than one is it happening with all of them?