Send 100 bites each time to the COM port - Firefly, Grasshopper

Hi,

I'm connected to my Grbl 0.9 Drawing machine using Firefly's components Open Port, Serial Read & Write (Generic). When I connect a panel with a small G-code, it executes.

When the gcode is bigger than 120bites, it stops executing it. I've tried changing Baudrates, adding datadam, using timer... nothing worked. 

Could someone help me? 

Using the same long gcode with the machine's software, it goes till the end.