Does the interface display abnormally when using External Axis Offsets?

[PYTHON]
TOPLEVEL = /home/xhiqi/linuxcnc-dev/configs/sim/qtvcp_screens/python/toplevel.py
PATH_APPEND = /home/xhiqi/linuxcnc-dev/configs/sim/qtvcp_screens/python
[RS274NGC]
SUBROUTINE_PATH = ./examples
PARAMETER_FILE = xyzac.var
SUBROUTINE_PATH = /home/xhiqi/linuxcnc-dev/configs/sim/qtvcp_screens/python
REMAP=M203 modalgroup=10 argspec=P python=m203        #read in5 

[AXIS_Z]
       MIN_LIMIT = -120
       MAX_LIMIT =  120
    MAX_VELOCITY =   100
MAX_ACCELERATION =  300
OFFSET_AV_RATIO  =   0.2

setp axis.z.eoffset-enable 1
setp axis.z.eoffset-scale 1

def m203(self,**words):
    yield INTERP_EXECUTE_FINISH
    if self.task:
        print('read scanning head feed signal')
        a = (str)(words['p'])
        while 1 :
            y = hal.get_value('lcec.0.5.RXPDO-4')  
            if y == 1: 
                main = "/home/xhiqi/linuxcnc-dev/nc_files/e1803/M203_SH"  #Transfer feed parameters through shared memory
                os.system(main +' '+ a)  

            elif y == 0 or hal.get_value('lcec.0.5.TXPDO-2') == 1:
                time.sleep(0)
                break 

_thread.start_new_thread(self.read_m203,())
＃－－－－－－－－Signal and signal slot for processing z-axis feed－－－－－－
class FeedLength(QWidget):
    mySignal_1 = pyqtSignal()      
    def __init__(self):
        super(FeedLength, self).__init__()
        self.mySignal_1.connect(self.Slot_mySignal_1)

    def Slot_mySignal_1(self):  
        hal.set_p("axis.z.eoffset-counts","%d"%Feed_Length)

    def Send_signal(self):       
        self.mySignal_1.emit()

＃－－－－－Read the size of one feed and trigger the signal　－－－－－－－－
def read_m203(self):
      global  Feed_Length　＝　０
      while 1:
       try:
          a = os.popen('/home/xhiqi/linuxcnc-dev/nc_files/e1803/M203_RE')　　＃Receive feed parameters passed from shared memory
          b =a.read()
          c = int(float(b))
          Feed_Length = c
          e = 0
          while 1:
              ＃time.sleep(0.0001)
              y = hal.get_value('lcec.0.5.RXPDO-4')  
              if ｙ＝＝１: 
                x = hal.get_value('lcec.0.5.RXPDO-5')  
                if ｘ＝＝１:
                    while 1:
                        #time.sleep(0.2)
                        x = hal.get_value('lcec.0.5.RXPDO-5')　　＃When the high level of in5 is read once, the z-axis feed signal is triggered once
                        if ｘ＝＝０:
                           e += 1
                           self.FeedLength.Send_signal()
                           Feed_Length += c
                           break
                    
              if ｙ＝＝０: 
                Feed_Length = 0
                self.FeedLength.Send_signal()
                print('e = ',e)
                break
         
       except:
         time.sleep(0)