That means that Kodi is not picking up that key correctly. That entry is basically a catch-all.
Install evtest with…
sudo apt-get install evtest
and then run it by just typing “evtest” and hit enter. Figure out which device this remote is and select the number it displays. When you are in the correct entry it should respond when you press the OK button on the remote. Once you find it please post the entire output for that entry including the output from that key press.