Hi,
can you please check the highway classification of your new way https://www.openstreetmap.org/way/1417856545#map=19/43.173348/13.684269&layers=VN  ?

From the topology of the roundabout I believe that it is not connected to the roundabout on its west end. If this is the case, please add the tag "noexit=yes" on that node and classify the highway type down to "residential". 

In the unlikely case that it is connected with the roundabout, please connect it.

thanks

ratrun