When the symbol with we are working does not have enough liquidity, the platform can display graphics deformed with fewer quantity of candles than usual.
This “loss” of bars/candles is because the plotter display a element only if there were movements during the time corresponding to said bar, depending on the timeframe we’re working.
A lowest timeframe (1 minute, 5 minutes …), has more probability to get this problem.
PineScripts.