Hi @Swingx, During market hours live candles are built using real-time ticks from exchanges. However, due to internet fluctuations (even on 4G/5G or broadband), some price ticks may not reach your device instantly, causing slight differences in live candles.
When you refresh the chart, it reloads accurate historical data from our servers, which may result in minor adjustments to recent candles. you may read more on how charts works in post below :