No problem
As i stated before, we have divergent books of hadith. In these books of hadith are narrators, and chains of narrators. For example, if i narrated from you, who narrated from x, from y , from z, who heard the Messenger of Allah, Muhammed s.a.w say something.
So you see, due to divergent opinions on the most reliable routes, the trustworthy narrators, and the best sources to obtain the truest words of Muhammed s.a.w and his habits, commands, etc, shia's and sunni's have each made judgements on narrators, individuals, and who they consider to be reliable.
Therefore, while there is much in common between shia's and sunni's with regards to the Sunnah of Muhammed s.a.w, there are also differences, stemming from each party deeming different narrators/sources/books reliable for obtaining the Sunnah of Muhammed s.a.w
Salafi-type groups however, deem shia muslims to be deviants, and if they are not layman, to be kaffirs and apostates[some deem all shia scholars as kuffars. There are some users on this forum who have refused to reply to my greetings of salam (peace), have called me a 'rafidhi' (abusive word for shia's when said by a non-shia), simply because i am a shia muslim.