Errors not reliable

[avrock123]

I'm using the MAX 31855 on my arduino uno and I think the library is giving false errors. On both the SerialTest and MuxTest examples, the correct temperature measurement is given, but after a while the code continues to throw an error:
ERROR: Thermocouple Open!!

I know that the shield is properly inserted because I used another library for this shield and the measurement was returned reliably. What could be the issue? Any help would much be appreciated.

[coryjfowler]

Can you tell me more about the setup? You said it you are using an Uno, what MAX31855 shield or breakout are you using? What pin is used for chip select? Are you using any other shields or peripherals? I'll see if I can recreate the issue when I get a chance this week.