Not reading serial data from Arduino

[anjula04]

I'm using an Arduino AtMega 2560 to inputa sequence of numbers as serial data [1 2 3 4 5 ...] and used the SerialPort Connector App to link it to the LSL. However, all the time it gives the same data stream [52 55 54 48 13 10 52 55 54 49 13 10 ...] (irrespective of the Arduino program).

I believe setting on the Serial Port Connector App is correct (didn't change Chunk size and Misc Timeout Settings though).
Do you have any fix for this?
Thank you.