Ultratronics Firmware 1.0.0: SD thermocouple MAX31855 Conflict

Greetings all,
Using firmware 1.0.0 on Ultratronics board with max31855 thermocouple on TC0 (pin 65),  I finding that when SD card onboard inserted, has conflict with the readings of hotend temperatures, giving 0,0ºC.

SD card is fine.

Looking over the forum I thing I found it could be something related to SPI. I have been trying to find the issue but without success.

Has any one had the same problem?
Any solution?

If could be of any help, attached the firmware .RAR.

Thank you  in advance



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