solved！
I have issues about the palette, any help is very much appreciated!
Mac10.15
Km:Version 9.0.3
After upgraded to 10.15, all three types of palettes disappeared! I tried some methods including reinstalling KM, but they are invalid. Although the palette is not visible, the shortcuts still respond.
The problem is the palettes not macros, even palettes of global macros. So I am not sure what information should be provided, I try to provide what I know.