Hello,
Sorry, I look too fast at your badges. I should have realized that you're using the front-end version.
Since you're not receiving other emails than the creation, I suppose that some of your HikaShop emails are not configured to send updates of the orders.
While the multi-vendor part handle the notification of the vendor on the "sub sale" update ; for the "main vendor", the notification is linked to the HikaShop email.
And, since you have an issue, it means that we should propose a fallback to continue sending HikaMarket emails even if the HikaShop email is not generated.
Can you please provide a screenshot of your HikaShop emails (to see what is enable or disable) so I can confirm my suspicious?
In the meantime, I'll perform some tests to see how I can change the behavior and see what kind of setting I can introduce.
(Unfortunately, both systems can't be used at the same time, otherwise emails could be send twice)
Regards,