Local Undo Function

After updating to Cubase 10.5 I have noticed that the “local undo function” is not working anymore? - each event (f.ex a midi part) used to have its own independent undo/edit history. This was a very useful feature which I used all the time in Cubase 9.5. Apparently this feature been removed - please bring this back!

Control +z is the shortcut for undo