Serial connection between Esp32 and PC using C# interface gives wrong numbers

I wrote the string into the file, that's being send through the serial port. The send strings are the one with the "--" in the front:

-- J1 1.000
J1 1.000
-- J1 2.000

-- J1 3.000
J1 2.000
-- J1 4.000

-- J1 5.000
J1 3.000
-- J1 6.000

-- J1 7.000
J1 4.000
-- J1 8.000

-- J1 9.000
J1 5.000
-- J1 10.000