Snare Drum Flam Error/Bug

Why is flam slur different in score from part? Am I missing a setting?
I always have to go in and manual fix both parts.
Score:

Part:

In the lower panel, if you set local properies to globally in the score it should be reflected in the parts but before you make property changes. You can also select everything, possibly switch to Engrave mode and do Edit->Propagate properties.

Jesper