N.B. I’m currently running 6.0.22, so this might have been correct in later versions.
Starting in F-clef;
changing to G-clef;
the cautionary flats remain in place.
If I close and re-open it is ok again.
Edit: Selecting the slur and Reset Appearance also updates the cautionary accidentals to the correct ones.
Perhaps someone with the latest version can check before it becomes a “case”.





