IDC shows copy of Activating object on Blocking side

I think I have a GUI bug in iQANdesign 6.06

The activating object "B" in this channel shows up also as a blocking object.

If I click anywhere in the blocking window it disappears but will reappear as soon as the channel is closed and reopened.

It will also disappear if the property inspector is resized or the center divider is moved.

If the channel is opened with the activating window too small the ghost duplicate will be cutoff at the same point

The duplicate channel does not exist in a text export:

          BEGIN 92488
          Internal digital channel (IDC)
          Name=Allow elevated idle
          Description=
          Toggle=No
          Delay on=0
          Delay off=0
          Function selector=Not used
          X=620
          Y=480
            
            BEGIN 92489
            Function
            Name=Default function
            Description=
              
              BEGIN 92490
              Object group
              Name=Activating
              Description=
              Method=Or
              Valid=True
              Expression=
                
                BEGIN 92497
                Math object
                Name=A
                Description=
                Operator=not
                Operand 1=Production running instant
                END 92497
                
                BEGIN 92499
                Math object
                Name=B
                Description=
                Operator=<
                Operand 1=Engine Speed Limit Request - Minimum Continuous [rpm]
                Operand 2=1300
                END 92499
              END 92490
              
              BEGIN 92491
              Object group
              Name=Blocking
              Description=
              Method=Or
              Valid=True
              Expression=
                
                BEGIN 92495
                Math object
                Name=A
                Description=
                Operator=>
                Operand 1=Engine Speed Limit Request - Minimum Continuous [rpm]
                Operand 2=2005
                END 92495
              END 92491
            END 92489
          END 92488