OK that's a good start.
OK so from what I'm seeing a movement or short or dissconnect in the sensor would manifest differently then what i saw. Not to mention the 60 sec threshold isn't going to trigger anything from my 10 to 15 sec blip.
Because the Hotend heats up to 148° and then holds at that value for 15 sec then jumps to 170° and carries on like normal.
I'm begining to think the Heat graph in Octopi uses real time client side script, where if you loose wifi for 10 sec the data point values are frozen until the browser regains a connection to the live data from the octopi. (a solution that saves having to continuously refresh the page but can result in a stagnent data point stream)
I think i can test that theory by starting a print from room temp and dissabling wifi on my desktop and see if the graph values freeze but time continues to tick. And then reenable wifi and see if the real time temp values jump. Or if the page goes directly to a 404 after turning off wifi.
(would be so much easier to post a screenshot)
It's the holding for 10-15 sec which is confusing.