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MT5 Optimization for "All Symbols Selected in Marketwatch" result are almost all incorrect

Hello, I made some tests with EA optimization option as "All Symbols Selected in Marketwatch" . In this option, the system backtest EA with all symbols in the marketwatch with reports in optimization result. But the problem is that almost all backtest results are incorrect with big differences

Candle stick display error

Hello, I got a problem with my MT5 displaying new candles. Some times in some instruments, there only display the price line following the tick change, but no new candle stick or bars displaying. Old candles are still there in the bar chart, seems there are errors in a certain time and then the bars

MT5 having big bugs in the latest update

The latest MT5 update(buidl 1940) has been very unstable which caused the EA running with big problems. We got problems after every several hours to copy the latest bar,and cause the EA we had running stable for several years with very big problem. The same issue happens on several different brokers

The Recent version becomes very slow in backtesting

The backtesting of MT5 was a great advantage on speed, while the recent update version 5.00 build 1571, 27 Mar 2017 makes the backtesting unbelievable slow. Is there any way to get the old version back