IWR6843AOP: Is it a bug in 68xx_vital_signs?

Hello Champs,

HW: IWR6843AOPEVM+MMWAVEICBOOST

SW: Industrial Toolbox4.7/vital_signs

Customer failed to run the demo from Back, there is no output on the GUI. but he can run the demo from Front.

Is it a bug in the back.cfg file?

Below is the log.
Configuration File Path is %s/n "C:/Users/user/Downloads/mmwave_industrial_toolbox_4_12_1/labs/Vital_Signs/68xx_vital_signs/gui/profiles/xwr68xx_profile_VitalSigns_20fps_Back.cfg"
"sensorStop"
"flushCfg"
"dfeDataOutputMode 1"
"channelCfg 15 3 0"
"adcCfg 2 1"
"adcbufCfg -1 0 0 1 0"
"profileCfg 0 60.25 7 6 57 0 0 65 1 100 2000 0 0 40"
"chirpCfg 0 0 0 0 0 0 0 1"
"frameCfg 0 0 2 0 50 1 0"
"lowPower 0 1"
"guiMonitor 0 0 0 0 1"
"calibDcRangeSig -1 0 0 0 0"
"vitalSignsCfg 0.1 0.7 256 320 1 0.1 0.05 300000 300000"
"motionDetection 1 20 0.04 0"
"sensorStart"
""
"sensorStop"
"flushCfg"
"dfeDataOutputMode 1"
"channelCfg 15 3 0"
"adcCfg 2 1"
"adcbufCfg -1 0 0 1 0"
"profileCfg 0 60.25 7 6 57 0 0 65 1 100 2000 0 0 40"
"chirpCfg 0 0 0 0 0 0 0 1"
"frameCfg 0 0 2 0 50 1 0"
"lowPower 0 1"
"guiMonitor 0 0 0 0 1"
"calibDcRangeSig -1 0 0 0 0"
"vitalSignsCfg 0.1 0.7 256 320 1 0.1 0.05 300000 300000"
0.1
0.7
1
"motionDetection 1 20 0.04 0"
"sensorStart"
""
Chirp Duration in us is : 50
Chirp Bandwidth in kHz is : 3250
Maximum Range in Meters is : 4.61538
Range-FFT size is : 128
Range-Bin size is : 0.0360577
Range-Bin Start Index is : 2
Range-Bin End Index is : 19
Total Payload size from the UART is : 256
Total Payload size from the UART is : 256

Thanks
Regards
Shine