Model Quality always shows "n/a" – even with full FXT + HST export (Pro user)

[scalping ai]

Hi,

I'm a Tickstory Pro user and recently purchased a full license ($100), but I'm experiencing a persistent and critical issue: the modeling quality in MetaTrader 4 always shows "n/a", no matter what I do.

Here’s what I’ve already done:

- Exported both FXT and HST files using Tickstory Pro with full M1 data (over 5 years)
- The FXT file size is over 8GB
- FXT is marked as read-only
- HST files are correctly placed in the appropriate history folder
- I’m using the exact symbol name (EURUSD) and M1 timeframe
- Strategy Tester is set to “Every tick (the most precise method)”
- The FXT file was manually patched using Python to ensure model byte (0x58) is set to 1 (model 1)
- I’m using a portable MT4 terminal, build 1441, to ensure compatibility

Despite all this, MT4 still logs the test as “model 0” in the Journal:
TestGenerator: symbol EURUSD period 1 model 0 from ...

It even overwrites the FXT file if I remove the read-only flag, meaning MT4 doesn’t recognize the file as valid and creates its own default version.

I purchased Tickstory Pro specifically for 99.90% modeling quality in backtesting, but currently, I can’t get MT4 to properly use the exported tick data. It always defaults to model 0 and shows "n/a".

Can you please advise:

- Is Tickstory Pro still compatible with MT4 build 1441 for proper tick-based FXT usage?
- Is there a known workaround to force MT4 to use the exported FXT file as model 1?
- Has the FXT structure or signature changed in a way that MT4 no longer accepts it?

I appreciate any help you can offer. Thank you.

[tickstory]

Hello,

Tickstory is compatible with the latest MT4 Build 1441. Firstly, please ensure you are not using any third-party utilities (python, etc) - you only need Tickstory to do 99.9% modelling quality ("Every tick") back-tests and anything additional to this could be causing your problem. Next, could you please clarify if you have pressed the "Launch" button in Tickstory to ensure MT4 is ready for back-testing? Please go through our trouble-shooting FAQ for this question here and let us know if you continue to have problems. You can also refer to our introductory video for back-testing with MT4 here.

Thanks.