Dear all,
Would you have any suggestions on approaching the following problem?
I would like to set up the keyboard shortcuts to use the Hyper modifier, which I put in place of caps lock:

andrew@o:~$ xmodmap
xmodmap: up to 3 keys per modifier, (keycodes in parentheses):

shift Shift_L (0x32), Shift_R (0x3e)
lock
control Control_L (0x25), Control_R (0x69)
mod1 Alt_L (0x40), Alt_R (0x6c), Meta_L (0xcd)
mod2 Num_Lock (0x4d)
mod3 Hyper_L (0x42), Hyper_L (0xcf)
mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce)
mod5 ISO_Level3_Shift (0x5c), Mode_switch (0xcb)

This setup works smoothly for emacs and other contexts, and is loaded automatically on start-up. Yet when I try to create a shortcut in one of the KDE menus (System Settings, Kate, etc.) the caps key is not recognized as a modifier, I get garbage in the "shortcut" button, and it stops the input before I can press another key.
In Kate, there is usually an imminent crash after this. The Global Shortcuts window survives until I try to reassign this shortcut.
I really need to get Hyper to work, since I use it for everything.
Any help would be greatly appreciated!
Andrew

This should definitely not occur, and likely highlights a bug within the core KDE libraries or Qt, which are responsible for handling shortcuts. Please install debugging symbols, generate a backtrace and file a bug report at bugs.kde.org attaching the backtrace.

Done and done:
https://bugs.kde.org/show_bug.cgi?id=247508