id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
32	INIT_LAST in not intialized properly	XiangLi		"INIT_LAST[NUMBER_OF_SLICE_TYPES][NUM_CTX_LAST_FLAG_SETS * NUM_CTX_LAST_FLAG_XY] =  
{
  { BSLICE_LUMA_LAST_POSITION_CONTEXT,    126,  111,  111,   79,
    BSLICE_CHROMA_LAST_POSITION_CONTEXT,  CNU,  CNU,  CNU,  CNU,
  }, 
  { PSLICE_LUMA_LAST_POSITION_CONTEXT,    111,  111,   95,   94,
    PSLICE_CHROMA_LAST_POSITION_CONTEXT,  CNU,  CNU,  CNU,  CNU,
  }, 
  { ISLICE_LUMA_LAST_POSITION_CONTEXT,    143,  127,  111,   79, 
    ISLICE_CHROMA_LAST_POSITION_CONTEXT,  CNU,  CNU,  CNU,  CNU,
  }, 
};

As NUM_CTX_LAST_FLAG_XY=25, there are no enough elements for the initialization. Following code would fix the issue

INIT_LAST[NUMBER_OF_SLICE_TYPES][NUM_CTX_LAST_FLAG_SETS * NUM_CTX_LAST_FLAG_XY] =  
{
  { BSLICE_LUMA_LAST_POSITION_CONTEXT,     126,  111,  111,   79,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,
    BSLICE_CHROMA_LAST_POSITION_CONTEXT,   CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,
  }, 
  { PSLICE_LUMA_LAST_POSITION_CONTEXT,     111,  111,   95,   94,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,
    PSLICE_CHROMA_LAST_POSITION_CONTEXT,   CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,
  }, 
  { ISLICE_LUMA_LAST_POSITION_CONTEXT,     143,  127,  111,   79,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU, 
    ISLICE_CHROMA_LAST_POSITION_CONTEXT,   CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,  CNU,
  }, 
};

"	defect	closed	minor	HM-16.6-JEM-4.0	JEM	HM-16.6-JEM-3.2	fixed		ksuehring XiangLi jvet@…