MIDI Transpose bug in Cubase 13.0.20?

I am finding strange behavior with MIDI transpose in 13.0.20. I compare the same project file in Cubase 12.
In C13 I open a MIDI track and highlight one or more notes. Then from the menu I select
MIDI…Transpose Setup and select ‘Transpose in Semitones’ 1 semitone and then OK
In Cubase 12 I get the expected behavior that only the highlighted notes are transposed.
In 13.0.20 all of the note in the MIDI track are transposed, even if only one note was selected.

Is this expected ?