I find the OHLC prices in MQL4 are different from MQL5 at the same time? For example:
Which prices are ture in fact? Thank for any help in advance.
You may want to compare OHLC from different brokers as well, seriously !.
That's the main reason I don't use Japanese candlestick since a long time ago. Unlike stock market - which is centralized market (i.e NYSE wall street), forex is over-the-counter-interbank market, banks trades (buys-sells) forex between banks without any centralized market. So your broker's price feeds (which also comes from many banks) may different from other broker. I think those guys who manage/trading other's people forex accounts from different brokers understand that situation completely.
You may want to right click and refresh the chart and check to lower and lowest timeframe, but I don't think that help a lot.
There is article about MT4 chart holes in MQL4.com, however MQL4.com is not available at the moment. Here we go https://www.mql5.com/en/articles/1407