Do purchases from Canada take longer to appear?

I've booked a few flights and hotels for across the US and Canada. All were booked on my VS AMEX but only the two from Canada have not appeared in my recent purchases.
Does anyone know if purchases from Canada do take longer to appear in my Credit Card account?
Thanks, as always, for any advice.
Does anyone know if purchases from Canada do take longer to appear in my Credit Card account?
Thanks, as always, for any advice.