Does not happen to me in black day:
adf443a9-ff17-4173-9b4a-feebded2496d-immagine.png
Are you all using using the latest version of the map or did you actually forget the put the options?
Concerning other custom campaigns: yup, the option does nothing because the timed expansion is configured somewhere else (I share your frustrations and had to edit them myself as well).
"Blame" the author I guess.
edit: oh geez the OP was from 2020. @KonjikiNoYami please do not necro threads from 2 years ago...but either way, yeah, not much to be done unless you want to contact the original authors and ask them to "fix" it.