Problem with "Worksheet_BeforeRightClick"

[Fibo]

I just changed computer and my .xlsm file (which is strored on google drive) doesn't behave correctly on right clicks.
If the selected cell is A1 for example. If I then right click on C3, instead of executing the code thats within "Worksheet_BeforeRightClick" it doesn't execute the code immediatly.
The first thing it does is deploy the dropdown menu below C3 and select C3. If I then right click again, it execute the code.
So I have to right click twice and I have an undesired dropdow menu on the first click.

Example
Private Sub Worksheet_BeforeRightClick(ByVal Target As Range, Cancel As Boolean)
MsgBox "Hi"
Cancel = True
End Sub

fs I rightclick any cell on the sheet that contains this code, it will first show me the drop down menu (the one that should not apear thanks to Cancel=true) and select the cell.
I have to right click a second time for "Hi" to pop in the message box and the dropdown menu won't appear which is the desired effect.
Does anyone knows the solution to this problem?

 

[Fibo]

Ok, I Just found the problem.
In excel 365 the following option has to be checked:
File/More/Options/Trust Center/Trust Center setting...