When using random access configuration, setting GOPSize=16 and RateGOPSize=8, the decoder crashed.
That is caused by for frame 8, at the encoder side, the reference frame list is [L0 0 16 ] [L1 0 16 ] [LC 0 16 ], which is treated as low delay B frame; but at the decoder side, the reference frame list is constructed as [L0 0 16 ] [L1 16 0 ] [LC 0 16 ], which is traditional B frame.

In my opinion, the fix can be

store lambda
m_pcRdCost ->setLambda( dLambda );
m_pcTrQuant->setLambda( dLambda );
rpcSlice ->setLambda( dLambda );

#if BUG_FIX_GOP_SIZE

if ( rpcSlice->getPOC()%m_pcCfg->getGOPSize() == 0 )
{

eSliceType = P_SLICE;

}
else
{

eSliceType = B_SLICE;

}

eSliceType = (iPOCLast == 0

uiPOCCurr % m_pcCfg->getIntraPeriod() == 0

m_pcGOPEncoder->getGOPSize() == 0) ? I_SLICE : eSliceType;

rpcSlice->setSliceType ( eSliceType );

#endif

around line 353 in TEncSlice::initEncSlice().