CC1101: Extra bit '1' added at the end

Tool/software:

Hello,

I've noticed an issue with the CC1101 module - the last transmitted bit is twice as long as the normal width. This problem occurs when the last bit in the data is '1', but if the last bit is '0', the module does not append an extra '1'. I've tested this behavior with various Arduino libraries as well as using SmartRF Studio with a CC Debugger, and the issue persisted. What could be the cause of this?

Settings:

Modulation: OOK/ASK
Frequency: 443.8 MHz
Fixed size, No preamble/sync, no CRC, Manchester off, Whitening off

Data: 0x01 0x01 0x01

Data: 0x01 0x01 0x02

Registers values from SmartRF Studio:

//
// Rf settings for CC1101
//
halRfWriteReg(IOCFG2,0x29);        //GDO2 Output Pin Configuration
halRfWriteReg(IOCFG1,0x2E);        //GDO1 Output Pin Configuration
halRfWriteReg(IOCFG0,0x06);        //GDO0 Output Pin Configuration
halRfWriteReg(FIFOTHR,0x47);       //RX FIFO and TX FIFO Thresholds
halRfWriteReg(SYNC1,0xD3);         //Sync Word, High Byte
halRfWriteReg(SYNC0,0x91);         //Sync Word, Low Byte
halRfWriteReg(PKTLEN,0x03);        //Packet Length
halRfWriteReg(PKTCTRL1,0x04);      //Packet Automation Control
halRfWriteReg(PKTCTRL0,0x00);      //Packet Automation Control
halRfWriteReg(ADDR,0x00);          //Device Address
halRfWriteReg(CHANNR,0x00);        //Channel Number
halRfWriteReg(FSCTRL1,0x06);       //Frequency Synthesizer Control
halRfWriteReg(FSCTRL0,0x00);       //Frequency Synthesizer Control
halRfWriteReg(FREQ2,0x11);         //Frequency Control Word, High Byte
halRfWriteReg(FREQ1,0x11);         //Frequency Control Word, Middle Byte
halRfWriteReg(FREQ0,0xB9);         //Frequency Control Word, Low Byte
halRfWriteReg(MDMCFG4,0xF5);       //Modem Configuration
halRfWriteReg(MDMCFG3,0x83);       //Modem Configuration
halRfWriteReg(MDMCFG2,0x30);       //Modem Configuration
halRfWriteReg(MDMCFG1,0x02);       //Modem Configuration
halRfWriteReg(MDMCFG0,0xF8);       //Modem Configuration
halRfWriteReg(DEVIATN,0x15);       //Modem Deviation Setting
halRfWriteReg(MCSM2,0x07);         //Main Radio Control State Machine Configuration
halRfWriteReg(MCSM1,0x30);         //Main Radio Control State Machine Configuration
halRfWriteReg(MCSM0,0x18);         //Main Radio Control State Machine Configuration
halRfWriteReg(FOCCFG,0x16);        //Frequency Offset Compensation Configuration
halRfWriteReg(BSCFG,0x6C);         //Bit Synchronization Configuration
halRfWriteReg(AGCCTRL2,0x03);      //AGC Control
halRfWriteReg(AGCCTRL1,0x40);      //AGC Control
halRfWriteReg(AGCCTRL0,0x91);      //AGC Control
halRfWriteReg(WOREVT1,0x87);       //High Byte Event0 Timeout
halRfWriteReg(WOREVT0,0x6B);       //Low Byte Event0 Timeout
halRfWriteReg(WORCTRL,0xFB);       //Wake On Radio Control
halRfWriteReg(FREND1,0x56);        //Front End RX Configuration
halRfWriteReg(FREND0,0x11);        //Front End TX Configuration
halRfWriteReg(FSCAL3,0xE9);        //Frequency Synthesizer Calibration
halRfWriteReg(FSCAL2,0x2A);        //Frequency Synthesizer Calibration
halRfWriteReg(FSCAL1,0x00);        //Frequency Synthesizer Calibration
halRfWriteReg(FSCAL0,0x1F);        //Frequency Synthesizer Calibration
halRfWriteReg(RCCTRL1,0x41);       //RC Oscillator Configuration
halRfWriteReg(RCCTRL0,0x00);       //RC Oscillator Configuration
halRfWriteReg(FSTEST,0x59);        //Frequency Synthesizer Calibration Control
halRfWriteReg(PTEST,0x7F);         //Production Test
halRfWriteReg(AGCTEST,0x3F);       //AGC Test
halRfWriteReg(TEST2,0x81);         //Various Test Settings
halRfWriteReg(TEST1,0x35);         //Various Test Settings
halRfWriteReg(TEST0,0x09);         //Various Test Settings
halRfWriteReg(PARTNUM,0x00);       //Chip ID
halRfWriteReg(VERSION,0x14);       //Chip ID
halRfWriteReg(FREQEST,0x00);       //Frequency Offset Estimate from Demodulator
halRfWriteReg(LQI,0x05);           //Demodulator Estimate for Link Quality
halRfWriteReg(RSSI,0x80);          //Received Signal Strength Indication
halRfWriteReg(MARCSTATE,0x01);     //Main Radio Control State Machine State
halRfWriteReg(WORTIME1,0x00);      //High Byte of WOR Time
halRfWriteReg(WORTIME0,0x00);      //Low Byte of WOR Time
halRfWriteReg(PKTSTATUS,0x00);     //Current GDOx Status and Packet Status
halRfWriteReg(VCO_VC_DAC,0x94);    //Current Setting from PLL Calibration Module
halRfWriteReg(TXBYTES,0x00);       //Underflow and Number of Bytes
halRfWriteReg(RXBYTES,0x00);       //Overflow and Number of Bytes
halRfWriteReg(RCCTRL1_STATUS,0x00);//Last RC Oscillator Calibration Result
halRfWriteReg(RCCTRL0_STATUS,0x00);//Last RC Oscillator Calibration Result