CCS/TM4C1294NCPDT: SysctlReset()

Part Number:TM4C1294NCPDT

Tool/software: Code Composer Studio

Hi,

I have interfaced an LCD with the TM4C1294NCPDT . 

Without using TI RTOS, when I reset the processor using SysCtlReset(), upon Interrupt by a Switch press SW1, the program execution resumes as normal and the LCD displays as normal.

But when I use TI RTOS, and program the same functionality, the LCD gets corrupted upon execution after SysCtlReset().

Does anyone have any idea as to why this occurs?? 

I have checked the LCD initialisation code, but it seems to be correct.

Thank You.