skhdrc problem - keybinding does not work

# Pageup and Pagedown
lctrl + lalt - v : skhd -k "pageup"
lctrl + lalt - c : skhd -k "pagedown"
lctrl + lalt - u : skhd -k "pageup"
lctrl + lalt - m : skhd -k "pagedown"

# focus window
lctrl + lalt - f : yabai -m window --focus south
lctrl + lalt - r : yabai -m window --focus north
lctrl + lalt - q : yabai -m window --focus west
lctrl + lalt - e : yabai -m window --focus east

lctrl + lalt + lcmd - i : yabai -m window --focus south
lctrl + lalt + lcmd - k : yabai -m window --focus north
lctrl + lalt + lcmd - j : yabai -m window --focus west
lctrl + lalt + lcmd - l : yabai -m window --focus east

#warp
lctrl + lalt + lcmd + rshift - k : yabai -m window --warp south
lctrl + lalt + lcmd + rshift - i : yabai -m window --warp north
lctrl + lalt + lcmd + rshift - j : yabai -m window --warp west
lctrl + lalt + lcmd + rshift - l : yabai -m window --warp east

lctrl + lalt + ralt - a : yabai -m window --resize left:-50:0; \
yabai -m window --resize right:-50:0
lctrl + lalt + ralt - s : yabai -m window --resize bottom:0:50; \
yabai -m window --resize top:0:50
lctrl + lalt + ralt - w : yabai -m window --resize top:0:-50; \
yabai -m window --resize bottom:0:-50
lctrl + lalt + ralt - d: yabai -m window --resize right

# flip along y-axis - RIKTIG
lctrl + alt + lcmd - y : yabai -m space --mirror y-axis
# flip along x-axis - RIKTIG
lctrl + alt + lcmd - x : yabai -m space --mirror x-axis

#split type - RIKTIG
lctrl + lalt + lcmd - g : yabai -m window --toggle split

#rotate
#lctrl + alt + shift + cmd - r : yabai -m space --rotate 270

# toggle window float - RIKTIG
lctrl + lalt - g : yabai -m window --toggle float --grid 4:4:1:1:2:2

#fullscreen - RIKTIG
#lctrl + alt - space : yabai -m window --toggle zoom-fullscreen
lctrl + lalt - space : yabai -m window --toggle zoom-fullscreen

#balance
lctrl + alt - b : yabai -m space --balance

# move window to space #
ralt - 1 : yabai -m window --space 1; 
ralt - 2 : yabai -m window --space 2;
ralt - 3 : yabai -m window --space 3;
ralt - 4 : yabai -m window --space 4;
ralt - 5 : yabai -m window --space 5;
ralt - 6 : yabai -m window --space 6;
ralt - 7 : yabai -m window --space 7;
ralt - 8 : yabai -m window --space 8;
ralt - 9 : yabai -m window --space 9;

# Move to ipad
#lctrl + lalt + lctrl - larrow : yabai -m window --warp east
#lctrl + lalt + lctrl - rarrow : yabai -m window --warp west

ralt - q : yabai -m window --resize left:-50:0; \
yabai -m window --resize right:-50:0

ralt - f : yabai -m window --resize bottom:0:50; \
yabai -m window --resize top:0:50
ralt - r : yabai -m window --resize top:0:-50; \
yabai -m window --resize bottom:0:-50
ralt - e: yabai -m window --resize right:50:0; \
yabai -m window --resize left:50:0

# stop/start/restart yabai
lctrl + lalt + ralt + shift - q : brew services stop yabai
lctrl + lalt + ralt + shift - s : brew services start yabai
lctrl + lalt + ralt + shift - r : brew services restart yabai

How come that lctrl + lalt + f,r,q,e is working, while lctrl + lalt + f,r,q,e does not? I have literally tried everything to sort out this issue,

Start by reproducing the reported bindings from the posted skhdrc, comparing the working and non-working modifier combinations and the yabai commands they invoke. Check how skhd interprets the keybinding syntax and confirm completion by establishing which configuration consistently triggers the intended window-focus actions.

Written by the indexing model from the issue text.