PAM modulation

[Seonghyeon]

Hi,

I have just one question!!

In NXG, i just sent bits stream received from UDP and unpacked to receiver located in same file using 'MT Modulation PAM'(2-PAM). It transfered to 'MT  Demodulation PAM'.But, after demodulating, parts of bits stream were lost. 
Actually, i send 10528 bits at a time, but 10522 bits are received. 
Why is this happening??????

I do suffer from it.. Pleas help me.. ㅠ_ㅠ

Example file and captured file i did is attached.