When capital locks, all shortcut keys containing letter combinations are invalid, regardless of whether they are set to uppercase:
command.update {
name = "Navigate: Page Picker",
key = "Ctrl-Alt-P",
mac = "Cmd-Alt-P",
priority = 0
}
or lowercase:
command.update {
name = "Navigate: Page Picker",
key = "Ctrl-Alt-p",
mac = "Cmd-Alt-p",
priority = 0
}