I am running Lightroom Classic CC 7.5 on Windows 10.
I did a little more testing, and this is what I am seeing:
- Alt+shift+0 does nothing for me when I use the 0 as part of the number pad section of the keyboard, but does work when I use the 0 above the letters.
- I do have the same experience that you have, where after creating a new keyword set alt+shift+0 works (provided that I use the 0 above the letters), but alt+0 does nothing.
- Alt+shift+0 above the letters causes a windows beep sound for some reason, but does go to the prior keyword set
I tried this on a Gigabyte Aero 15x laptop with built in keyboard and also a Bluetooth connected Logitech K375s with the same results.
If you need me to try anything else out just let me know.
Thanks for looking into this!