Welcome.
This is an Acrobat bug that has been fixed up in Acrobat DC 2018.
Since you have a perpetual licence you must wait for the next update (which should occurs in the next months…).
As a workaround I put all abracadabraTools in the “Edit” menu too.
Under the “abracadabraTools” submenu, so you can acced it directly (sorry, keyboard shortcuts are not available for JavaScript plugins).
:Smiley15: