Couple of days ago i got the time. So i backtest past three months. And i manually checked every trade. What i noticed sometimes even all conditions are met backtest have no trade there. It was missing almost 12 trades. So i have an opinion backtest can give you 60% to 70% accuray what happend in past.
best way to test its accuracy is run strategy live for a month .
Then backtest on 1min candles and see if results are somewhat similar.
They will not be same but shouldn’t be wildly different either
I will try 1 min as well
If it really missed trades you can post it as a bug report with the backtest url.
I will report bug