I have been using custom shortcuts for a long time. One of them was "Alt+H" to call "HUMANIZE.CAL" automatically.
Today I decided to remove this shortcut.
Now, within the Track View, pressing Alt+H, CbB triggers the "Help" shortcut on the main menu (which is correct).


But if the cursor is in another window, for example, Piano Roll View, or Console View, pressing Alt+H there, it triggers the old shortcut, that is, it loads HUMANIZE.CAL.
 

 
But there is no longer any trace of this shortcut in preferences.
 

 

 
What is wrong?

I assume the changes and preference images were made with a project loaded. BTW, the PRV shortcuts image shows ALT+H is modified (the dot to the left of ALT+H).
 
Use lenses? They can mess with shortcut settings.
 
Might be fixable by exporting keyboard assignments, reset to defaults, review and edit the export file (it is a text file) then import the the verified file.

When ever I need to modify Keyboard bindings, I always have no lense active.  I also always export Keyboard bindings to a file prior to making changes and then again (under another filename) after making the changes.

Then I reselect the lense and then reimport the modified Keyboard bindings file.  Sometimes I re-save the lense.

I also, deselect key bindings for a given lense in the lense manager.

As Scook says, lenses do tend to mess with Keyboard bindings.

Possibly you still have a binding under Track View?

scook
Might be fixable by exporting keyboard assignments, reset to defaults, review and edit the export file (it is a text file) then import the verified file.

Not using lenses, but importing "SONAR Default Key Assignments.kbn" and after importing my custom .kbn solved the problem. Thanks!