Just about to e-mail Shopify support, they e-mailed last night to say amongst other things:
"Incorrect Conversion Rates
I have checked, and it looks like many of our merchants are experiencing the same thing regarding the conversion rates on our platform. Our developers are aware of the problem and are working to resolve it very soon. Though there is not a definite time frame when this expected is to be resolved, but what I can do is hold onto your ticket and once this has been resolved I can update you in a follow-up email."
So they do see a problem, they just don’t see all of it. They also said:
"Number of Visitors Concern
As for your concern about your store traffic, there are no known issues with that is affecting our merchant’s admin pertaining to that specifically. I did take a look around, and I do see today’s traffic within the normal range when comparing it to last year. Though, I would love to dig into this further with you, to ensure I am addressing your query. May I get you to share a screenshot of where you’re viewing this information? A screenshot provides detailed information like what date and data you are seeing on your end, and what is being referenced."
I’m sending this thread for them to review.