Selecting pb and cc events not working properly

Cubasis
1
  1. Cannot select all pb or dense cc*2 data in cb3
  2. Reproduce
    Make sure auto quantize and snap Grid is off
    Record from pitch bend or mod wheel…
    In the appropriate edit window drag over or double tap to select all the events

3. Expected Results
All the events should be selected and can be acted upon, delete, copy etc
4. Actual Results
Only some of the events are selected. Remaining events cannot be selected at all.

5. Environment
iPad Air 4. iPad OS 14.5. Also happened with previous ipados version.

I am probably missing something obvious.