I've defined some custom line charts on a dashboard, with a refresh time of 150 minutes. Despite this, I notice that they keep reloading - with maybe one on the dashboard always in the process of reloading at a time. I'm assuming that the flashing yellow symbol top left means that it's reloading.
I dont' want this behaviour, as my feed pulls on a backend database with some rate limits. After a few minutes my widgets stop working because they've polled too much data!