During rolling forward in `ReplayBlocks()` the UI progress starts with 0 then, once sync up again, jumps to 100%. This process can take pretty long and it would be good to show some progress steps within the RollingForwardBlock loop (`for (int nHeight = nForkHeight + 1; nHeight <= pindexNew->nHeight; ++nHeight) {`)
} while (!chainActive.Tip() || (starting_tip && CBlockIndexWorkComparator()(chainActive.Tip(), starting_tip)));
            if (!blocks_connected) return true;
            const CBlockIndex* pindexFork = chainActive.FindFork(starting_tip);
            bool fInitialDownload = IsInitialBlockDownload();
            
            
            if (pindexFork != pindexNewTip) {
                
                GetMainSignals().UpdatedBlockTip(pindexNewTip, pindexFork, fInitialDownload);
                
                uiInterface.NotifyBlockTip(fInitialDownload, pindexNewTip);
            }
        }
        
        if (nStopAtHeight && pindexNewTip && pindexNewTip->nHeight >= nStopAtHeight) StartShutdown();
        
        
        
        
        if (ShutdownRequested())
            break;
    } while (pindexNewTip != pindexMostWork);
    CheckBlockIndex(chainparams.GetConsensus());
    
    if (!FlushStateToDisk(chainparams, state, FlushStateMode::PERIODIC)) {
        return false;
    }
    return true;
}
bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, std::shared_ptr<const CBlock> pblock) {