Agreed that I don't see the point in this, it sounds like you have improvements that could be done from a Org and Network organizational perspective, and then the customer should be using the Meraki app or the Vision portal (which can be put on your ...

Agreed, I would try setting that to something like 10 or even 20 mbps temporarily and see if the problem goes away, also check your switch QOS settings that you are trusting those markings.

The firmware version you see in dashboard and in API is what the network is set to in the firmware upgrades page, not the actual version running on the device, only Meraki Support can actually see what firmware is running on the device