Keycode interpretation (135)

I have been using Anki for a while now and really appreciate it.

I am using a new keyboard since yesterday and changed the associated symbol for keycode 135 with xmodmap. The keycode was interpreted as Menu, now it is used as Super_R.
However, Anki is still interpreting it as Menu. I have to change the focus to another window in order to use keycode 135 as Super_R.
It would be great, if this was changed.

I am using Ubuntu 20.10 and Awesome WM.