Lots of exceptions at high temperatures.

[chipgarner]

I am seeing a lot of errors, only at high temperatures. In my case above 1800f, others have reported that this consistently happens at temperatures above 1600f.

The reported temperatures between the errors are reasonably accurate. I can run this thermocouple and MAX31855 for days at room temperature with zero errors. This happens (as above) even during cool down when the electrically noisy kiln is shut of and unplugged.

Any idea what this could be?