I always use eBay.com because eBay.ca got some bug like the one you are telling but also sometime don't provide order shipping status update to customer from other eBay site(ebay.co.uk, ebay.fr, etc..).
Sometime, it does not show to buyer that his order was shipped out, so customer message about why order was still not shipped.. Even if you put a message to buyer in order note and check the shipped box sometime customer don't receive update if you are using eBay.ca.
Hope it can help some people 🙂
Regards,
Eric
