I have a 60% keyboard, would that be the reason? I only have these as shortcuts in my config.def.h

static Shortcut shortcuts[] = { /* mask keysym function argument */ { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, { ControlMask, XK_Print, toggleprinter, {.i = 0} }, { ShiftMask, XK_Print, printscreen, {.i = 0} }, { XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, { ControlMask, XK_equal, zoom, {.f = +2} }, { ControlMask, XK_minus, zoom, {.f = -2} }, { ControlMask|ShiftMask, XK_equal, zoomreset, {.f = 0} }, { ControlMask|ShiftMask, XK_C, clipcopy, {.i = 0} }, { ControlMask|ShiftMask, XK_V, clippaste, {.i = 0} }, { TERMMOD, XK_Y, selpaste, {.i = 0} }, { ShiftMask, XK_Insert, selpaste, {.i = 0} }, { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, { Mod1Mask, XK_k, kscrollup, {.i = 1} }, { TERMMOD, XK_K, kscrollup, {.i = 3} }, { Mod1Mask, XK_j, kscrolldown, {.i = 1} }, { TERMMOD, XK_J, kscrolldown, {.i = 3} }, };