The lead developer will have a better say on this. He'll be here.

But usually it doesn't happen, portfolio recognizes its past trades. The problem might be that you closed the chart, if my memory serves me correct it is better to have it on the exact same chart, but on the other hand if the magics are the same (did you double check?) it should work ok.

Have you tried removing the portfolio and re-attaching it few seconds later? Sort of a restart without changing the chart.

And the most trivial - are there any error messages?

Can you replicate the error? First put it on chart, let it open a couple of trades, remove the portfolio, then re-attach it.
And try the same but now by closing the chart and opening a new one and then re-attaching the EA.

Right now I just restarted my machine and the EA does not recognize anymore all my open trades. Please how can I get this fixed by monday?

What should I do? There are no errors reported on Journal.

Read a bit trough the code and added: SetPosStats(); on the initialization:

int OnInit(void)
  {
   Comment("");
   DeleteObjects();

   barTime   = Time[0];
   stopLevel = MarketInfo(_Symbol, MODE_STOPLEVEL);
   pip       = GetPipValue();

   accountProtectionMessage = "";
   entryProtectionMessage   = "";

   ParseNewsCurrenciesText();
   lastNewsUpdate = TimeCurrent();
   if(!MQLInfoInteger(MQL_TESTER))
      LoadNews();
   
   SetPosStats();
   OnTick();
   ChartRedraw(0);

   return INIT_SUCCEEDED;
  }

Now my trades are recognized and I see them in the text written by the EA in the chart. Possible that I was not seeing any positions because the market is closed, hence OnTick does not get triggered and by consequence SetPosStats() also does not get called?

If that's the case, wouldn't it make sense to have SetPosStats inside OnInit?