New keyboard shortcut doesn't work when restarting v570

[CodeWzrd]

I assigned a new keyboard shortcut for the Quick filter feature (/) and Quick filter off (Shift + /). It works fine as long as I don't close the app. When I start the app, typing '/' does not enable the Quick filter functionality. I have to go back into the Keyboard shortcuts and reassign the shortcuts for it to work again. BTW, the '/' is similar to Firefox's find feature.

Are there rules for what shortcuts are allowed?

Thanks.