#define UI_ENCODER_SPEED 2           /    work    thanks

#define UI_ENCODER_SPEED 1

#define EEPROM_MODE 0  is ok. for eeprom change

  275 | #define LOBYTE(x)  ((uint8_t)((x) & 0x00FFU))

#define Z_PROBE_DELAY 200

#define CONFIGURATION_H

#define NUMTEMPS_14 46

#define TEMP_0_PIN static_cast<int>(PC_4) // T0 pin is listed as PC4 which is pin 36 not pin 5

#define NO_TIMEOUTS 1000

//#define NO_TIMEOUTS 1000 // Milliseconds

simply add #define RFSERIAL Serial2 at beginning of configuration.h

#define CONFIGURATION_H

#define DISTORTION_CORRECTION 1

#define NUM_HEATERS 2

#define BED_LEVELING_GRID_SIZE 2

Send:17:46:40.742: N18 M303 E0 S200 C8 Recv:17:46:40.747: PID Autotune start Recv:17:49:55.126: bias: 66 d: 66 min: 196.25 max: 204.02 Ku: 21.64 Tu: 43.75 Recv:17:49:55.126: Classic PID Recv:17:49

Recv:17:35:05.323: #define DEFAULT_bedKp 40.19

#define THERMAL_PROTECTION_HYSTERESIS 7

// Ultimaker #define DEFAULT_Kp 22.2

With the new firmware and server upgrade everything now seems to be working (even the bed is heating up quickly since I disabled "//#define PIDTEMPBED" in the Merlin config.  The only thing