I have been able to reproduce it on an iMac with a US keyboard, running Dorico in English, and with Pitch before duration. I wasn’t sure what to do about shortcuts so I did nothing for that.
The same sort of thing happens in A Major (3 sharps) on C and D.
Sometimes the last note in a bar is not affected.
From the little experimenting I did, it also seems to happen with other note values.
I believe this is a limitation of how accidentals are input during pitch-before-duration, at least if you have “Specify accidental, rhythm dot and articulations” set to “Before inputting note” (our ref: STEAM-11889). The accidental needs to be set before the note is input, which means that there isn’t an opportunity for the accidental to be cleared/changed when changing the choice of pitch. This isn’t new, though.