Split Layer Keyboard Shortcut no longer working in After Effects 2020

Hello Everyone,

    I just updated to the newest After Effects version 17.1.0, and now my Split Layer keyboard shortcut that I use 50 times a day is no longer working. I hae tried going into my keyboard shortcuts menu, but it shows that it is still set up correctly.  I have tried going into the .txt file too, but that did not seem to work either.  Anyone have a fix for this?

- Cratin

working on a Mac Pro with Mac OSX Catalina 10.15.4