Problem with German Ultimate Version of DAO

Hai everyone,

I recently bought a german version of DAO ultimate edition to have access to the dlc's

Because i also own a single edition of DAO in english.

But i can't get the dlc's from the ultimate edition to work with this english version ?

So now i was wondering if this is normal or if there is any workaround to let this work ?

Becaus i always thought dlc's are universal so languages doesn't matter ?

Thanks in advance

Friendly regards

Aveline