[WIN] Midi solo issue when using velocity

I re-posted this because I realized I didn’t attached the required level of detail:

1 Create a project with at least 2 instrument tracks,
2 Edit some random midi data, play back (loop)
3 Edit the second track
3 Click the solo track button in the editor
4 5 Select menu->midi->functions->velocity
6 Change velocity to Add +10 and then OK

Result: All tracks will be played as long as the dialogue is open
Expected: The other tracks should remain muted

Running Cubase 8.5.15 on Windows 10 with Steinberg UR22 mkII.
Not a showstopper but very annoying at high monitoring levels…