Debug EA - Results on visual and non-visual backtests are not the same MT5

Dear Developers,

I'm looking for someone experienced on both MQL5 and MT5 backtests, knows the ins and outs of backtesting an EA, how multi time frame backtesting works, how indicators interfere, the importance of data and etc.

I had an EA developed and everything seemed to work fine but I eventually realised that the visual backtest is giving different results from non visual (which is what i was using for most of my initial testing) - I have been trying but cannot reach the original developer of the project so I am looking for someone to help me with this debugging. It seems like the visual mode misses a lot of trades it should take and are not missed by non visual (i know, very weird) - problem is i do not know how the EA would behave live, if it would work like visual or non visual, hence the need to fix it.

The indicators that are connected to the EA all work fine on visual backtest, and the MT5 visual backtest for indicators match exactly as if i am plotting it on the chart. Now, there are functions within the EA that could be causing this issue somehow, like ADR calculation (which is used a lot on this EA for entries, add trades and exits) - ADR (average daily range) calculation knowledge is also needed. I don't want to waste time with inexperienced coders that i will have to explain what is ADR, how it is calculated etc..

My suggestion is to add a piece of code to the EA that will write to a csv file the value data for each of the indicators being used on each candle, as well as ADR, and some distances it has to calculate.... So we can compare the file generated by visual and non visual backtest and figure out where the issue is happening...

In addition to identifying where the issue is happening we need to go ahead and fix it after identifying.... Currently the EA has a dashboard that shows some information, I want to add adr spacing since last trade (that will help us identify potential issues)

Other than that, a couple of functions that were initially thought about ended up not being used / working as expected and i would like to remove them so we don't have unnecessary stuff there.

I will make a video showing the logic of the EA, the issue with backtesting and give you set file to replicate my problem exactly. I will also guide you to what info we want to have on the CSV files as well as to what we can remove from the EA.

Please let me know if you have any questions.